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  • 1.
    Aarts, Mariëlle P. J.
    et al.
    Building Physics and Services, Department of the Built Environment, Eindhoven University of Technology, Eindhoven, the Netherlands.
    Aries, Myriam
    Jönköping University, School of Engineering, JTH, Civil Engineeering and Lighting Science. Jönköping University, School of Engineering, JTH. Research area Built Environment. Building Physics and Services, Department of the Built Environment, Eindhoven University of Technology, Eindhoven, the Netherlands.
    Diakoumis, Adonia
    Building Physics and Services, Department of the Built Environment, Eindhoven University of Technology, Eindhoven, the Netherlands.
    van Hoof, Joost
    Fontys EGT—Centre for Healthcare and Technology, Fontys University of Applied Sciences, Eindhoven, the Netherlands.
    Shedding a light on phototherapy studies with people having dementia: A critical review of the methodology from a light perspective2016In: American Journal of Alzheimer’s Disease and Other Dementia, ISSN 1533-3175, E-ISSN 1938-2731, Vol. 31, no 7, p. 551-563Article in journal (Refereed)
    Abstract [en]

    Light therapy is applied to older people with dementia as a treatment to reset the biological clock, to improve the cognitive functioning, and to reduce behavioral symptoms. Although the methodological quality of light therapy studies is essential, many aspects concerning the description of the lighting applied are missing. This study reviewed light therapy studies concerning the effects on people with dementia as a way to check the methodological quality of the description of light from a light engineering perspective. Twelve studies meeting the inclusion criteria were chosen for further analysis. Each study was scored on a list of aspects relevant to a proper description of lighting aspects. The overview demonstrates that the overall quality of the methodologies is poor. The studies describe the lighting insufficiently and not in the correct metrics. The robustness of light therapy studies can be improved by involving a light engineer or specialist.

  • 2.
    Aarts, Mariëlle P. J.
    et al.
    Department of the Built Environment, Eindhoven University of Technology, Eindhoven, Netherlands.
    Aries, Myriam
    Jönköping University, School of Engineering, JTH, Civil Engineeering and Lighting Science. Department of the Built Environment, Eindhoven University of Technology, Eindhoven, Netherlands.
    Straathof, Jochem
    Department of the Built Environment, Eindhoven University of Technology, Eindhoven, Netherlands.
    van Hoof, Joost
    Centre for Healthcare and Technology, Fontys University of Applied Sciences, Eindhoven, Netherlands.
    Dynamic lighting systems in psychogeriatric care facilities in the Netherlands: A quantitative and qualitative analysis of stakeholders’ responses and applied technology2015In: Indoor + Built Environment, ISSN 1420-326X, E-ISSN 1423-0070, Vol. 24, no 5, p. 617-630Article in journal (Refereed)
    Abstract [en]

    Long-term care facilities are currently installing dynamic lighting systems with the aim to improve the well-being and behaviour of residents with dementia. The aim of this study was to investigate the implementation of dynamic lighting systems from the perspective of stakeholders and the performance of the technology. Therefore, a questionnaire survey was conducted with the management and care professionals of six care facilities. Moreover, light measurements were conducted in order to describe the exposure of residents to lighting. The results showed that the main reason for purchasing dynamic lighting systems lied in the assumption that the well-being and day/night rhythmicity of residents could be improved. The majority of care professionals were not aware of the reasons why dynamic lighting systems were installed. Despite positive subjective ratings of the dynamic lighting systems, no data were collected by the organizations to evaluate the effectiveness of the lighting. Although the care professionals stated that they did not see any large positive effects of the dynamic lighting systems on the residents and their own work situation, the majority appreciated the dynamic lighting systems more than the old situation. The light values measured in the care facilities did not exceed the minimum threshold values reported in the literature. Therefore, it seems illogical that the dynamic lighting systems installed in the researched care facilities will have any positive health effects.

  • 3.
    Aarts, Mariëlle P.J.
    et al.
    Eindhoven University of Technology, Eindhoven, The Netherlands.
    van Duijnhoven, Juliëtte
    Eindhoven University of Technology, Eindhoven, The Netherlands.
    Aries, Myriam B. C.
    Jönköping University, School of Engineering, JTH, Civil Engineeering and Lighting Science. Eindhoven University of Technology, Eindhoven, The Netherlands.
    Rosemann, Alexander L.P.
    Eindhoven University of Technology, Eindhoven, The Netherlands.
    Performance of personally worn dosimeters to study non-image forming effects of light: Assessment methods2017In: Building and Environment, ISSN 0360-1323, E-ISSN 1873-684X, Vol. 117, p. 60-72Article in journal (Refereed)
    Abstract [en]

    When determining the effects of light on human beings, it is essential to correctly measure the effects, and to correctly measure the adequate properties of light. Therefore, it is important to know what is being measured and know the quality of the measurement devices. This paper describes simple methods for identifying three quality indices; the directional response index, the linearity index and the temperature index. These indices are also checked for several commonly used portable light measurement devices. The results stresses what was already assumed, the quality and the outcome of these devices under different circumstances were very different. Also, the location were these devices are normally worn has an impact on the results. The deviation range between worn vertically at eye level and the wrist is between 11% (outdoor) to 27% (indoor). The smallest deviation, both in indoor and outdoor, was found when the device was placed on the sides of the eye (7%). 

  • 4.
    Abdulameer, Hasanain
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Chamoun, Kristian
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    BIM i små och medelstora anläggningsföretag.2015Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Purpose: The purpose of this bachelor thesis is to improve the usage of BIM in facility projects.

    Method: The methods used for this bachelor thesis are qualitative interviews and literature studies.

    Findings: Free programs will be available for usage where models can be opened, viewed, examined and studied. The small and medium-sized facility companies will not be forced to use resources to cope with the requirements of Trafikverket.

    Implications: Consequences are that the small and medium-sized civil engineering companies understand and follow the requirements.

    • Using more 3D models to gain more experience and skills in the subject.

    • Attend the Trafikverkets industry days when opportunities arise, the authors believe that it was very instructive.

    • Engage in more BIM projects.

    • Older projects where the drawings are in 2D is converted into 3D.

     

    Limitations: How BIM is used during the management process will not be covered.

    Keywords: Productivity, resource, competence, experience, BIM.

  • 5.
    Abi-Khalil, Pierre
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineeering and Lighting Science.
    Abdulahad, Zuhair
    Jönköping University, School of Engineering, JTH, Civil Engineeering and Lighting Science.
    Stadsutveckling i mellanstora städer: En studie om förtätning i centrala Norrköping ur ett socialt och ekologiskt perspektiv2018Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Planners in Norrköping municipality today facing a challenge to meet Norrköping'sneeds in the housing market, while at the same time achieving demand for public places and areas such as parks, squares and nature areas. When existing areas within the city's borders are built, so-called densification takes place in the city, whichcan have both positive and negative consequences. The aim of this study is to investigatehow the densification has affected Norrköping's inner city from a social and ecologicalperspective with a focus on free space, and present proposals for measures forbetter management of the densification in central Norrköping.

    This study has mainly been carried out using a qualitative research method.A qualitative study is based on soft data such as interviews, document analysis and literature studies. The interviews have been conducted with respondents from Norrköpings municipality and the document analysis consists of steering documents obtained from Norrköpings municipality and Pontarius AB. Some data is obtained from documents and studies where results are presented in the form of tables, diagrams, figures and GIS analysis, which means that quantitative methods are also applied.

    To perform a safer densification, it is important that the municipality establishes safe guidelines and steering documents to relate to. These control documents should be used as a framework for efficient exploitation and ensure that the city's freeareas are developed from a sustainable perspective and that a good quality is includedin the development.

    It is advantageous that the development of the densification takes placeaccording to guidelines and documentation prepared by the municipality. To ensure maximum efficiency in exploitation, these guidelines should be followed at an early stage. It is also important that there is a balance of free space size and their quality. Too small a surface leads to a higher load and larger surfaces can be perceived as superfluousand a feeling of unsecure. It is recommended to study how the densification developsin connection with the infrastructure and how it will affect free and green areas in the long run.

    This study is limited to only the inner city of Norrköping. The study also delimits economic and political factors that can influence the planning of the densification and the development of the city’s infrastructure and public transport.

  • 6.
    Abrahamsson, Josef
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Karlsson, Mikael
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Bullerbegränsande åtgärder för byggnation nära befintlig väg2018Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Purpose: When cities grow at a faster rate, new places are needed to build housing.The municipalities that are growing tends to choose build sites that previously wererejected due to noise pollution. There are requirements from the state that the noise maynot exceed certain values. The requirements originate from the fact that over twomillion swedes are exposed to noise daily. Noise can lead to health problems, in theform of sleep disorders and cardiovascular disease. To reduce health problems noiseinvestigations are made, where suggestions are made in how noise levels can bereduced. The purpose of the work is to provide the reader with knowledge of whichfactors influence noise investigations and the approach to the choice of noise reductionmeasures so that construction can be made closer to trafficked roads.

    Method: The methods used are literature studies, document analysis and interviews.The literature gathered consists of scientific articles. The documents consist of noiseinvestigations conducted by different companies all over Sweden. Persons to interviewwere chosen from the conductors of the noise investigations documents.

    Findings: To answer the report's purpose, three questions were raised. The firstquestion deals with noise-reducing technologies and which technologies are used today.The report found that there are several ways to reduce noise. In the following order, themost frequently used are: silent facade, noise screen, speed reduction, distance betweenhouse and roads, vegetation, road moving and quiet asphalt. The second question of thereport addresses the factors that influence the choice of noise reduction measure. Fromthe literature study, absorption, reflection and reduction were found to be importantfactors. In the document analysis, surroundings, traffic and speed emerged as importantfactors. In the interviews, aesthetics and price emerged as important in the choice ofwhich reducing action should be taken. The third question deals with the question ofhow construction can be made closer to the road. In the result it appears that all of thesolutions mentioned earlier have the ability to reduce noise, but how effective they areand how well they reduce noise varies from case to case. Surroundings and trafficvolume are of great importance.

    Implications: Making use of the technical solutions previously described, results in areduced noise level and there for construction near road can be made possible.Executing a noise investigation at an early stage means that later and more expensivechanges can be avoided, which means that construction can take place sooner. Thereport suggests therefore that noise issues should be considered early in projects. It isalso important to get a solution that everyone can accept.

    Limitations: The report's results are limited to a smaller selection of noiseinvestigations and interviews. More investigations and interviews could hadcontributed to a larger spectrum. The report does only consider noise outdoors and whatopportunities for noise reduction there are.

  • 7.
    Abubakr, Raowa
    et al.
    Jönköping University, School of Engineering, JTH, Industrial Engineering and Management.
    Patel, Pooja
    Jönköping University, School of Engineering, JTH, Industrial Engineering and Management.
    Packaging systems decision makin; to assure cost efficient transports2016Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
  • 8.
    Adamsson, Mathias
    Department of Architecture and Built Environment, Lund University, Sweden.
    Non-image-forming effects of light: Implications for the design of living and working environments2018Doctoral thesis, comprehensive summary (Other academic)
    Abstract [en]

    Seasonal variation in mood and subjective well-being are common at geographical locations further away from the equator. The 24-h light-dark cycle is the main time cue for synchronizing the human circadian clock to the external day and night.

    Nowadays, people spend more of their waking day indoors, with less exposure to the natural daylight cycle, relying on artificial lighting which differs to daylight in a number of aspects, including intensity, spectral composition and light exposure pattern.

    In parallel with the technology development that has been mainly driven by energy-saving reasons, it is important to investigate the non-image-forming effects of different properties of the daily and seasonal light exposure.

    The overall aim of the thesis was to identify characteristics of the daily light exposure that are important to support physiological and psychological needs of humans. To achieve this objective a number of research questions were posed concerning daily and seasonal light exposure, seasonal variation in physiological processes and psychological parameters, and evaluation of light exposure with respect to non-image-forming effects. The research questions were investigated in a longitudinal research design with measurements conducted each month during the year at a high latitude with large seasonal variation in day lengths.

    Self-report diaries and instruments for ambulatory- and static measurements were used to examine daily and seasonal light exposure in the working and living environments and for investigating the relationship between different parameters that can be used for evaluating light exposure according to non-image-forming effects of light. Seasonal variation in daily light exposure and regarding the pattern of light exposure was observed. Also, the results indicate a seasonal variation concerning the quality (i.e. spectral composition of the visible radiation) of the exposing light.

    Two biological markers, melatonin and cortisol, were used for investigating seasonal variation in physiological processes relating to the circadian clock. The results showed higher morning melatonin concentrations and peak level of melatonin during the winter although no seasonal change was observed concerning the phase position of the melatonin rhythm.

    Seasonal differences in mood and sleep-activity were studied by means of selfreport diaries and questionnaires. Seasonal variations were observed for both parameters. The results showed higher ratings of mood in the summer, particularly 6 in the evening, and a relationship between bedtime and evening light exposure and photoperiod length. Furthermore, longer sleep times was observed in the winter.

    Appraisal of lighting conditions in the offices during the year was rated by the use of a questionnaire. The results showed some seasonal differences concerning the perceived qualities of the light and some associations between characteristics of the lit environments and positive affect were found.

    Two methods, static- and ambulatory measurements, were used for recording lighting conditions in the working environments. Taken together, the results showed weak associations between the two methods.

    Research have demonstrated an increased need for taking non-image-forming effects into consideration when designing working and living environments, especially at geographical locations with large variations in day length where people are exposed to much of the daily light exposure at the workplace. Laboratory research has provided a good understanding of the basic concepts. However, more field research is needed. Also, current research has demonstrated that new methods of measuring and evaluating lighting conditions are needed.

  • 9.
    Adamsson, Mathias
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineeering and Lighting Science.
    Laike, Thorbjörn
    Department of Environmental Science, Fukuoka Women's University, Japan.
    Morita, Takeshi
    Department of Environmental Science, Fukuoka Women's University, Japan.
    Annual variation in daily light exposure and circadian change of melatonin and cortisol concentrations at a northern latitude with large seasonal differences in photoperiod length2016In: Journal of Physiological Anthropology, ISSN 1880-6791, E-ISSN 1880-6805, Vol. 36, no 1Article in journal (Refereed)
    Abstract [en]

    BACKGROUND: Seasonal variations in physiology and behavior have frequently been reported. Light is the major zeitgeber for synchronizing internal circadian rhythms with the external solar day. Non-image forming effects of light radiation, for example, phase resetting of the circadian rhythms, melatonin suppression, and acute alerting effects, depend on several characteristics of the light exposure including intensity, timing and duration, spectral composition and previous light exposure, or light history. The aim of the present study was to report on the natural pattern of diurnal and seasonal light exposure and to examine seasonal variations in the circadian change of melatonin and cortisol concentrations for a group of Swedish office workers.

    METHODS: Fifteen subjects participated in a field study that was carried out in the south of Sweden. Ambulatory equipment was used for monthly measurements of the daily exposure to light radiation across the year. The measurements included illuminance and irradiance. The subjects collected saliva samples every 4 h during 1 day of the monthly measuring period.

    RESULTS: The results showed that there were large seasonal differences in daily amount of light exposure across the year. Seasonal differences were observed during the time periods 04:00-08:00, 08:00-12:00, 12:00-16:00, 16:00-20:00, and 20:00-24:00. Moreover, there were seasonal differences regarding the exposure pattern. The subjects were to a larger extent exposed to light in the afternoon/evening in the summer. During the winter, spring, and autumn, the subjects received much of the daily light exposure in the morning and early afternoon. Regarding melatonin, a seasonal variation was observed with a larger peak level during the winter and higher levels in the morning at 07:00.

    CONCLUSIONS: This study adds to the results from other naturalistic studies by reporting on the diurnal and seasonal light exposure patterns for a group living at a northern latitude of 56° N, with large annual variations in photoperiod length. It seems to be seasonal variation in the lighting conditions, both concerning intensities as well as regarding the pattern of the light exposure to which people living at high latitudes are exposed which may result in seasonal variation in the circadian profile of melatonin.

  • 10.
    Adamsson, Mathias
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineeering and Lighting Science.
    Laike, Thorbjörn
    Department of Architecture and Built Environment, Lund University, Lund, Sweden.
    Morita, Takeshi
    Department of Environmental Science, Fukuoka Women’s University, Higashi-Ku, Fukuoka, Japan.
    Comparison of Static and Ambulatory Measurements of Illuminance and Spectral Composition That Can Be Used for Assessing Light Exposure in Real Working Environments2019In: LEUKOS The Journal of the Illuminating Engineering Society of North America, ISSN 1550-2724, E-ISSN 1550-2716, Vol. 15, no 2-3, p. 181-194Article in journal (Refereed)
    Abstract [en]

    Reliable measurements are of utmost importance when investigating the relationship between light and human reactions. The aim of the present study was to compare two methods for measuring light exposure in real working environments. Ambulatory recordings of illuminance and irradiance were compared with static field measurements of horizontal illuminance at the normal working position, average horizontal illuminance in the room, vertical illuminance at the position of the eye in the normal angle of gaze, and spectral composition of the light radiation at the normal working position and at the position of the eye in the normal angle of gaze. The ambulatory measurements were carried out during a 3-day experimental period and were repeated monthly throughout the year. The static field measurements in the subjects’ offices were conducted five times during the year, in the morning and afternoon during one day. The relationship between the illuminances and irradiances measured with the portable instruments and the static measurements was statistically analyzed. Results from the analyses revealed that more than one third of the static measurements of vertical illuminances recorded were below 200 lx, and only 7% of the measurements exceeded 1000 lx. Measurements of the spectral composition of the light radiation in the rooms suggested that the light, although at a fairly low intensity, included relatively much radiation that can have a non-image forming effect. Furthermore, only a small number of significant correlations between the ambulatory and static measurements were found. Results from the t-tests showed that there were no differences between ambulatory measurements, and static measurements of horizontal illuminance at the normal position, average illuminance in the room and vertical illuminance at the position of the eye during three, five, and seven of the 10 measurements, respectively. There is a need to define appropriate parameters in order to describe the quality of a lit environment with respect to the non-image-forming effects of light radiation.

  • 11.
    Adamsson, Mathias
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineeering and Lighting Science.
    Laike, Thorbjörn
    Lund University, Sweden.
    Morita, Takeshi
    Fukuoka Women's University, Fukuoka, Japan.
    Seasonal variation in bright daylight exposure, mood and behavior among a group of office workers in Sweden2018In: Journal of Circadian Rhythms, ISSN 1740-3391, E-ISSN 1740-3391, Vol. 16, article id 2Article in journal (Refereed)
    Abstract [en]

    The purpose of the study was to investigate seasonal variation in mood and behavior among a group of office workers in Sweden (56°N). Thirty subjects participated in this longitudinal study. The subjects kept a weekly log that included questionnaires for ratings of psychological wellbeing and daily sleep-activity diaries where they also noted time spent outdoors. The lighting conditions in the offices were subjectively evaluated during one day, five times over the year. There was a seasonal variation in positive affect and in sleep-activity behavior. Across the year, there was a large variation in the total time spent outdoors in daylight. The subjects reported seasonal variation concerning the pleasantness, variation and strength of the light in the offices and regarding the visibility in the rooms. Finally, the subjects spent most of their time indoors, relying on artificial lighting, which demonstrates the importance of the lighting quality in indoor environments. 

  • 12.
    Adamsson, Mathias
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineeering and Lighting Science.
    Petersson, Mikael
    Jönköping University, School of Engineering, JTH, Civil Engineeering and Lighting Science.
    Aries, Myriam
    Jönköping University, School of Engineering, JTH, Civil Engineeering and Lighting Science.
    A holistic approach for a natural light variation experience: a pilot study of a practical application for office lighting2019Conference paper (Refereed)
    Abstract [en]

    Lighting is crucial for vision and has important effects beyond vision, influencing a variety of physiological and behavioral processes. When designing lighting, visual aspects, effects beyond vision, and perception of the environment should be considered together in a holistic approach. As humans evolved under daylight, a lighting protocol, based on a room context and daylight characteristics, was developed and described. The lighting, with customized light levels, spectral composition and light distribution that changed dynamically to evoke a perception of daylight conditions, was realized using commercially available luminaires and a digital control system. The resulting lighting conditions are described by measurements.

  • 13.
    Adanko, Carina
    et al.
    Jönköping University, School of Engineering, JTH. Research area Built Environment.
    Küller, Marianne
    Lunds universitet, LTH, Inst arkitektur och byggd miljö, Miljöpsykologi.
    LED-belysning och brukaren2014Report (Other academic)
    Abstract [en]

    Lighting research is diversified and includes theory and methodology from disciplines as different as technology, medicine and social sciences. There is also an expectation on research results to be directly applicable in real environments. The introduction of LED has furthermore made previous research on incandescent lamps, fluorescent lamps and other light sources, outdated.    New knowledge – and new research – is needed.

    An inventory of current LED-research was made during 2013. The result of this inventory is the basis of the research review here presented. The presentation includes more than 400 articles, reported under the headings: The biological clock; Flicker and dimming of LED: Energy efficiency: daylight and lighting control; Colour rendering; Glare, and finally; Perceived lighting qualities.

    Underlying theoretical considerations as well as actual knowledge are presented in the text of the different sections, and references are given to relevant research publications. All publications have been provided with two or more keywords in Swedish, describing the content of the publication. After the text given under each heading the references supporting this text are presented. In the final section all LED-publications are given in alphabetical order according to author and with keywords. 

  • 14.
    Agnesson, Stina
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Bagger-Sjöbäck, Josefina
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    PREFABRICERADE SMÅHUS PLANLÖSNINGAR: En jämförelse mellan tillverkare och kund2012Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Syftet med arbetet är att analysera utformningen av planlösningarna i prefabricerade småhus. Resultatet ska kunna utnyttjas som underlag vid planlösningsutformning och möjliggöra planlösningar med färre kundändringar.  

    Metoder som används är litteraturstudier, intervjuer och en fallstudie. Fallstudien är gjord med material från företaget Anebyhus som tillverkar prefabricerade småhus. Ur en av deras kataloger valdes tre olika hus med snarlika förutsättningar. Det som analyseras är tillverkares och kunders prioriteringar samt de vanligaste kundändringarna. Problemet är att om kunden ska bli nöjd med den slutliga planlösningen måste kunden och tillverkaren ha liknande kvalitetsprioriteringar. Ändringar som återkommer frekvent är ett tecken på en svaghet i ursprungsplanlösningen.

    Resultaten visar att tillverkare av prefabricerade småhus möter kundernas behov och önskemål genom prioriteringar av livslångtboende och flexibilitet i planlösningen. Kunderna visar prioritering av mer bänkytor i köket, vardagsrummet storlek och samband till köket och att alla i familjen ska få varsitt sovrum. De kundändringar som förekommer mest frekvent är minskning av antalet klädkammare, sammanslagning av teknik och klädvård samt att ändra till en U-formad köksuppställning. 

  • 15.
    Agriam, Pia
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Socialt hållbart boende2016Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    We need more research about what gives man good conditions for quality of life in a home environment. Social sustainability is a topic that is cherished more than ever in the world of architectures. The goal is to develop a knowledge base based on the experiences of users, architects and clients that can be used for the design of residential areas with apartment buildings.

    To achieve the goal there are questions to be answered as: "How is socially sustainable housing valued, according to architects and clients, when residential areas with apartment buildings are designed?" and "How are the values of social sustainability perceived, in residential areas with newly constructed apartment buildings, of the residents?" The questions are answered by means of an survey and several of interviews which together constitute a qualitative research.

    The results show that social sustainability can be seen from different angles. It is common to observe social sustainability from a community perspective and from an urban perspective according to scientific references. As an overall summary it is the beautiful shape and appearance of a building and its functionality weighed in with a reasonable cost that creates a socially sustainable housing according to interviews with architects and clients. It is about balance between beauty, functionality and economy, which together create a housing that lasts over time and confirms the human social dignity. According to those living in the area of Nysäter in Mölnlycke as the studied phenomenon, socially sustainable housing stands for comfort, security, privacy and community. Access to nature and outdoor activities, fresh air and good neighbourship are other factors that are highly valued. Socially sustainable housing has therefore connections to both physical parameters as well as non-physical qualities that needs to be linked with each other.

    The summarized results highlight the essential aspects that should be included in the planning of a new residential complex for it to be socially sustainable for residents. The knowledge base has a logical order from analyzing an unspoilt area with its qualities to analyze how the private residence must meet human needs for well-being.

    The Report is wide in its choice of subject tough it is limited to man's relationship to the dwelling and residential area in social contexts, how individuals perceive their environment both in and outside their home. With additional constraints had a deeper research been able to implement on a specific theme.

  • 16.
    Ahlander, Alfred
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineeering and Lighting Science.
    Ekroth, Pontus
    Jönköping University, School of Engineering, JTH, Civil Engineeering and Lighting Science.
    Kommunikationsmodell för APD-plan vid användning av materialrutor och gångstråk2017Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Purpose: On-site construction is a complicated process. A temporary factory, with new zones for materials and workplace area must be established for each new project, which complicates the process further. Material management stands for a big saving opportunity in building projects and 40 % of the time lost on a construction site can be attributed to material management.  To overcome this waste connected to material management a well-processed logistics planning, god communication as well as experience feedback from previous projects is required. The aim for this thesis is therefore to identify improvement measure regarding the use of material-dedicated buffer zones and walking paths, and as well as create a model of communication that supports experience feedback.

    Method The thesis is a case study on two projects within the organization of NCC.  A qualitative data collection with literature review, interviews, document analysis and observation has been conducted. Semi-structured interviews have been conducted and includes seven respondents with different position within the construction industry.

    Findings: The thesis has produced factors that should be taken into consideration when material zones and walking paths are planned. The result shows that resources and structured processes are required if experience feedback should work during the construction project. To succeed with the use of material-dedicated buffer zones and walking paths, good communication of the construction site plan is needed. Furthermore, the thesis has resulted in a model of communication that supports experience feedback.  

    Implications: It’s during the purchase and delivery planning that the conditions for the material-dedicated buffer zones and walking paths are set, therefore the construction site planning should be involved more in this phase. A prerequisite for using dedicated material zones and walking paths are resources which supports the construction management with planning and performance. By using logistic resources within the organization facilitates planning and management of material at the construction site, enables that collected experience can be conveyed between projects. In the production there should be a responsible receiver of material deliveries, who is extra briefed in the constructions site plan and the material-dedicated buffer zones through continuous communication with the construction management and logistic resource.

    Limitations: Since the thesis only includes two building projects, there is a limitation of the factors and arguments that are treated. Although the result is based on two building projects the fundamental processes and course of events are similar and can therefore be applied on other building projects. 

  • 17.
    Ahlberg, Oskar
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineeering and Lighting Science.
    Hultgren, Patrik
    Jönköping University, School of Engineering, JTH, Civil Engineeering and Lighting Science.
    KL-träbyggnad utan heltäckande väderskydd - Ett mer fuktsäkert förfarande2019Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Purpose: The purpose of this study was to produce a template for how to design CLT buildings moisture-safer and to make recommendations for a moisture-safe working method. CLT is a new building material where there is a need for standardization to meet the requirements and recommendations that exist. Greater consideration needs to be given to moisture in order for people's hygiene and health not to be affected.

    Method: By collecting data using a case study of a multi-story house in CLT, material handling as well as design of framework and weather protection are shown. Design of framework appears through document analysis of design documents for three CLT house projects. Furthermore, the industry's approach and experience are disclosed through interviews of people with different subject-relevant knowledge.

    Findings: By, in the early design stage, prioritizing moisture safety for both construction- and use stages the risk of moisture-related problems is reduced. Furthermore, it should be continuously and jointly worked with moisture safety between disciplines in the project. Building components to take special account of and measures to do this are presented as well as recommendations for a more moisture-proof working method.

    Implications: The results of the study should be a complement to ByggaF, this is because the result specifically addresses CLT. Through implementation, the hope is that the result will reduce the risk of moisture-related problems in CLT buildings. Furthermore, higher requirements should be set on moisture safety in CLT construction, as the result of the current working method is unknown and the precautionary principle should be applied.

    Limitations: The study's result, in form of the design template that is generated, are mainly applicable to architects and designers as only the framework is investigated. The result is generally applicable for new-construction of multi-story buildings in CLT which are constructed in Sweden. Furthermore, measures to reduce the risk of moisture-related problems are being investigated and does not refer to people's influence by microbial growth.

  • 18.
    Ahlgren, Ahlgren
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineering. Jönköping University, School of Engineering, JTH, Civil Engineeering and Lighting Science.
    Ekblad, Alexander
    Jönköping University, School of Engineering, JTH, Civil Engineering. Jönköping University, School of Engineering, JTH, Civil Engineeering and Lighting Science.
    Förvaltande byggherrars inställning till BIM2017Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
  • 19.
    Ahlgren, Josef
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Andersson, Stefan
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Klintenheim, Johannes
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Uppvärmning och miljöpåverkan: -en jämförelse mellan fjärrvärme och bergvärme i villa2008Independent thesis Basic level (professional degree), 10 points / 15 hpStudent thesis
    Abstract [en]

    Many of todays studies show that district heating is one of the betteralternatives as heating source because of its low environmental load.

    The energy source is often leftovers from other processes producing energy or waste, like garbage or chips.

    Electricity in combination with geothermal heating is another heating system that has increased sharply during the last years, and also this system decreases the discharges that have negative affects

    on the environment compared to several other heating methods.

    This report aims to, concentrated towards these two different heating systems, estimate the amounts of discharges they indirect cause and how the environment is affected.

    We have calculated the mean value for discharges of carbon dioxide, nitrogen oxide, sulphur oxide and dust generated from electrical power used in Sweden.

    Through interviews and research we have gained data for the same substances that district heating based on combustion of garbage and biofuel generates.

    We have also in cooperation with a housing company chosen a building we see representative for many of the new single-family houses built in Sweden today.

    Based on its shape and appearance we theoretically created three alternatives of the same house, each of them with climate screens different from each other.

    Together with the amounts of discharged environmental affecting substances, these houses were the base for our calculations and studies when investigating the different heating sources environmental effect.

    The results have thereafter been analyzed and discussed from different angles.

  • 20.
    Ahlstedt, Simon
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Poomann, Siim
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Uppgradering av prefabricerad villa till passivhus, baserad på en husmodell från Götenehus AB2011Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Rising energy prices, growing energy use and the current climate debate is a major contributing factor to today's search for new, more economical ways to use energy. The Swedish national building and planning department (Boverket) places greater demands on energy use in new housing. Local governments also place specific requirements on certain residential housing projects in addition to the requirements of Boverket, i.e. only passive houses may be built in certain areas. The terms passive house, zero-energy house and plus-energy house are becoming increasingly common in the construction industry and house manufacturers want  to offer products that meet these new requirements.

    This thesis examines whether it is possible to upgrade a pre-fabricated house so that it meets the requirements to be classed as a passive house according to FEBY (translated - Forum for energy-efficient buildings). The study is based on established calculation and production techniques used in Götenehus AB, a manufacturer of prefabricated homes. A case study based on the upgrade of a house from Götenehus is performed and the results are compared with the original house from energy and economic points of view. The production stage is also taken into consideration to see if the engineering solutions required for the upgrade can be produced with the methods in use today.

    The methodology used to process the subject have been literature studies, a case study, own calculations and consultations with staff at Götenehus and other people, who have knowledge on the subject. Energy calculations have been made using the energy  calculation software TMF-Energy v2.1, which Götenehus currently uses to calculate the energy performance of their houses. The results show that it is possible to upgrade the original house to meet the requirements for passive houses with changes made in the building envelope and heating and ventilation systems. The solution presented includes changes in all parts of the building envelope and replacement of the ventilation and heating systems. Instead of the exhaust air heat pump in the original house, a district heating system in combination with solar panels are used. The ability to combine different systems has been limited to the combinations that were available in the calculation software. The results also show that the investments needed for construction and installations are not financially justifiable. Also, the running costs for the passive house are bigger. The energy consumption for the passive house remains the same as in the original house.

  • 21.
    Ahlstrand, Sanna
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Bender, Johanna
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Nordström, Linn
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    A more efficient way of building in a developing country, influenced by industrialized building: A case study in Leticia, Colombia2015Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Purpose:The purpose of this study is to approach a solution to reduce housing shortage, by using inspiration from an industrialized building concept, which can lead to the opportunity for underprivileged people to get a livable housing. The aim is to study how knowledge from industrialized building could be used for a more efficient way of building in developing countries similar to Colombia.

     

    Method:Utilizing literature studies for achieving abutment to published research also giving the authors an observant mind. With this knowledge, participatory observations were made as action research to explore the prevailing procedure when establishing a house. Operating analyzes, interviews were held in Leticia for understanding observed decisions. To be able to critically analyze the results from the interviews and observations, collected data were compared with knowledge based on the authors’ reference frames.

     

    Findings:Keystones identified as the overall concept are applicable on establishments in the western world, since the concept is designed after similar conditions. Capital is required designing a building system as well as establishing a factory for prefabrication of elements, conditions limited in developing countries. Climate conditions and prevailing corruption prevents implementation of the concept. Identified weaknesses during the observations, noted repetition of unnecessary and non-value adding activities. One conclusion is not to implement the entire industrial building system, only practice the mindset. Initially keystones are implemented such as planning, exchange of information and reflection of performed projects, in order to improve upcoming projects. These keystones require no direct capital, merely a mindset that should be implemented.

     

    Implications:The outcome of this study is to enlighten the subject, since obvious weaknesses were noticed, with capacity for development. Further research is realistic because, in a long term it will help solving the housing situation. For example, using this result as underlay for education like creating more efficient building, enlightening planning for reducing unnecessary non value-adding activities. As a conclusion of the study, identified weaknesses during the establishment affects the efficiency, creating unnecessary costs. A developing country should focus upon emphasizing reduction of costs, since their economic status is already declining.

     

    Limitations: The observations during the case study have been concentrating on one small-scaled project in Leticia, Colombia. No further observations have been made but complements such as literature studies and interviews. Due to lack of time and language barrier, the amount of collected empirical data was too limited to provide durable conclusions for question formulations. Since only observations were performed on one establishment, a general result cannot be submitted.

  • 22.
    Ahlström, August
    et al.
    Jönköping University, School of Engineering.
    Elsberg, Mathias
    Jönköping University, School of Engineering.
    Nollvisionen om pappersritningar i byggbranschen - Hur kan en 3D-modell bli bygghandling2019Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
  • 23.
    Ahmad, Rojin
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineeering and Lighting Science.
    Selmani, Antigona
    Jönköping University, School of Engineering, JTH, Civil Engineeering and Lighting Science.
    Arbetsmotivationens påverkan på kvaliteten på flerbostadshus2018Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Purpose: Several studies show that work motivation in a workplace affects the individual's ability to perform and this may result in construction errors such as unnecessary economical costs and additional work hours. The aim of this study is to investigate the link between construction errors and work motivation as well as its impact on the quality of an apartment building. Method: To complete the objective of this study literature studies, questionnaires and interviews were conducted. The literature study includes scientific articles, doctoral dissertations and encyclopedias. These are taken from, among other things, the university library databases. The surveys consist of 21 questions based on Herzberg's two-factor theory. The interviews are semi-structured and the questions are based on the results of the survey. Findings: The results show that the link between work motivation and construction errors depends on knowledge, experience, commitment, stress and time shortage, communication, chord, salary, benefits and lack of leadership. In the construction companies that were included in this study, there is a lack of motivation among professionals, and the reasons for this are mainly due to benefits from the company and chord wages. The building-related consequences that result from motivation decline prove to be economical and time-consuming. The economic consequences show huge error costs. The time suggests that errors and shortcomings in homes lead to additional working hours in order to correct the errors that occurred during the production period. Restrictions: The study includes ongoing housing projects in Jönköping where supervisors and occupational workers are current. Question one is generally answered when it is not considered corporate, as is the last question. Issue two, on the other hand, only applies to these investigated projects.

  • 24.
    Ahmadkhani, Ali
    Jönköping University, Jönköping International Business School, JIBS, Centre of Logistics and Supply Chain Management (CeLS).
    Reverse side of logistics in automotive industry2017Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The third party logistics (3PL) providers play remarkable function in the business world of today’s; therefore, to investigate their challenges will be a valuable study. This study has investigated the challenges and ways to manage these challenges by a 3PL provide company. The achieved results are in coordination with the literature to some extent.The most important challenges are cost, flexibility, professionalism, and quality ofservices. In managing the 3PL challenges, theoretical views mostly tend to apply distinguished approaches, tools and algorithms. Meanwhile, in the case study, it has not introduced any specific approaches or algorithm, but mostly proposed the traditional approaches, such as doing researches and investigations, or Motivation Management. 

  • 25.
    Ahrenbeck, Linnea
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Holmström, Josefin
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Varför vill inte fler vara skyddsombud på byggarbetsplatser?2018Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Purpose: A stated problem in the construction industry is to recruit and keep safety officers. The lack of willing and engaged safety officers could result in lower safety at construction sites. The purpose of this report is to examine how the safety officers are currently experiencing their work environment and examine what can be changed to improve the situation. 

    The aim of this thesis is to find out what can be improved for more people to want to be a safety officer. This is examined by the main question: Why do not more people want to be a safety officer? The main question is answered by two sub-questions:

    • Which difficulties exists in the role as a safety officer? 
    • What changes needs to be done to improve the situation?

    Method: To reach the aim of the report a case study was performed. The case is Skanska Hus Väst and is limited to the profession safety officers. The method of investigation is interviews and questionnaires, which are qualitatively conducted. The interviews are conducted with the chief safety officers. The chief safety officers can see the broad picture of the situation since they continuously keep contact with all the construction sites in their district. The questionnaires are sent to all the local safety officers in all the districts in the entire region. 

    Findings: One reason for the lack of engaged safety officers is that they do not receive the necessary respect and response from their coworkers. It makes them feel alone. There is no acceptance for safety work and the time that is needed, which give the safety officers a bad conscience when they are forced to leave their work partner. To improve the situation the safety officer’s must receive more respect from their coworkers. Knowledge and acceptance concerning safety must be improved among all workers on the construction site. The safety officers need to feel that they can, and are allowed to, influence the project. 

    Implications: To solve the problem the current safety officer’s situation must be improved. If the existing safety officers are pleased they will give a positive picture of the role to their coworkers, the potential new safety officers. The safety officers’ situation can be improved by the points that follows:

    • The safety officers must receive more respect from others in the construction site. 
    • The safety officers should advantageously be placed separate from the time plan of the project.
    • The safety officers should be involved in an earlier stage of the project. 

    Limitations: The report has been limited to only examining the role of the safety officer and their own perspective. The views of safety officers from the perspective of other roles at the construction site has been omitted from the thesis. The report does not investigate how to perform the changes.

  • 26.
    Al Doory, Omar
    et al.
    Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management. Jönköping University.
    Freytag, Daniel
    Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management. Jönköping University.
    Developing waste-to-energi in Brazil: A pre-feasbility study for a waste-to-energi plant in Santa Catarina, Brazil2019Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
  • 27. Al Hassan, Rami
    Underlätta utvärderingen av digital beläggning genom undersökning av en semantisk datastruktur för BIM-baserad FM2019Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    The operational phase maintains the largest proportion of the building’s lifecycle cost. Moreover, the costs of the operational phase in a building’s lifecycle could be five to seven times higher than the initial investments. However, studies show that energy savings can be between 30-42% by performing occupancy detection in buildings. Therefore, this research paper is focused on assisting and facilitating BIM-based FM integration for occupancy assessment to support various evaluations of a building. The chosen approach to reach the aim of this study is the semantic web technology, considering the advantages it can provide in contrast to other web services such as SOAP or RESTful. A case study was conducted of a room located in the first floor of the school of engineering (JTH) building at Jönköping University. The case study investigated the data structure for the technologies which might be installed in the room later and the geometrical information of it. The used ontology in this study is RealEstateCore (REC). Furthermore, a literature review was conducted to investigate the occupancy information which can be gained by the technologies in that room. Results show that presence, location and count of occupancy can be obtained by CO2, temperature and WiFi positioning technol-ogy. However, every sensor has some exclusive properties and constraints for occupancy detection and estima-tion. Thus, the fusion of various sensors is an advantage as it can significantly increase the efficiency of indoor occupancy assessment. Also, the semantic web provided homogeneous data format that allows for greater in-teroperability between the BIM information and those technologies information. Moreover, REC ontology pro-vided most of the required semantics to describe room A and the CO2 and temperature sensors it might contain. However, the ontology lacked some of the required semantics to satisfy the description of the WiFi positioning system. Thus, extending the ontology to satisfy those required semantics is needed to reach more optimized results of the semantic web.

  • 28.
    Al Rammal, Monica
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Karabeg, Jenny
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Kartläggning av sex kommuners planering av kollektivtrafiken i nya bostadsområden inom Jönköpings län2017Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Purpose: Today we can see a steady increase in population, which calls on the municipalities to plan new residential areas and develop the old ones. This in turn leads to pressure on public transport with a focus on environmental issues and a desire for a different way of transport than by car becomes more and more relevant. The purpose is to give an overview and to understand the planning of public transportation today for six municipalities in Jönköping County.

    Method: The report has been conducted using qualitative studies in the form of interviews and literature studies. Document studies have also been used and have been downloaded from the municipalities' websites. Findings: When planning new residential areas, the municipalities try to bring public transport into account. In some municipalities, public transport has a more significant part in planning. If the municipality fail to achieve the aims of public transport planning, it will mainly result in negative environmental impacts. For the municipality to develop and make sure that the number of inhabitants increases, public transport should be an important part of the planning. When it comes to the cooperation between Jönköpings Länstrafik and the municipalities, they focus on public transport and that It will cover the need for travel in the municipalities. It is important that you already in the early stages of planning make sure that there is room for the public transport that is required.

    Implications: Public transport must continue to be a major part of planning and focus should be on realizing what is planned for public transport. Although the municipalities are planning public transport, there are residential areas that could have a significantly better access to public transport.

    Limitations: As time was not enough for a study covering all 13 municipalities in Jönköping County, it was decided to focus only on six municipalities with different circumstances and varying sizes.

  • 29.
    Alashkar, Zeen
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineeering and Lighting Science.
    Andersson, Stephanie
    Jönköping University, School of Engineering, JTH, Civil Engineeering and Lighting Science.
    Vägnätsanalys i Jönköping: Fokus på cykelvägarna2018Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Purpose: In a world with an increased awareness of the harm caused by traffic to the environment and health, it is preferable that more people choose cycling instead of driving. The purpose of this work is to create an attractive city environment for cyclists which will give a greater sense of security and leading to more people considering the use of bicycles. Method: The methods chosen to make the analysis is to check the demands and recommendations from Trafikverket, moreover make observations according to Mini Cycleability Index in order to see if the West Center of Jönköping is attractive to cyclists. Geographical Information systems has been used as a method for data collection and analysis. At last an interview was held with Jönköping municipality to discover what future plans they have regarding the studied area and how relevant the plans are with the findings of this research. Further purpose of the interview with the municipality was to see how they perform a road-network analysis and obtain an opinion on the analysis performed in this paper. Findings: The results show that the road system in Jönköping West Center has roads of shifting qualities. The grades have been split into three; great, good and poor. Great being the highest grade and poor the lowest. The three qualities of roads do exist within the area, however the poor roads appear to be more frequent than the others. The evaluation system is built upon how well the roads perform in the categories: space, safety and continuity. Implications: The conclusion of this work is that there are several roads as graded poor within the area that need to be considered for reconstruction to create an attractive area for cyclists. In the area the results showed that the roads graded as great mostly runs from north to south and few exists from east to west. Due to this it is difficult to bike within the area as the connectivity between the great graded roads are lacking. Limitations: The investigation is limited to the choice of the area (Jönköping West Center) and the aspects analyzed which are safety, space and continuity. Due to the time aspect further limitations on data collection has come, where a measurement of cyclists and a survey could have been useful to do. In order to suit the Cycleability index with the choice of area and the methods available to use, there has been a reduction of the amount categories evaluated

  • 30.
    Aldamiri, May
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Singarajah, Pirija Dharicenie
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    ÖKA BIM-ANVÄNDNINGEN -UR BESTÄLLARPERSPEKTIV2017Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Abstract

    Purpose: The purpose of this thesis is to map the level of knowledge and demand that the clients in today's construction industry have of the BIM aid. This will be achievedby identifying the possibilities and obstacles they believe that BIM causes the project.The aim is to develop a proposal on how to increase the use of BIM in the Swedish construction industry.

    Method: This thesis covers an analysis of the current situation regarding the client’s knowledge of a specific topic, qualitative interviews were chosen to enable the respondents’ answers to be developed after their personal experiences. Both interviews and literature studies were conducted to identify the pros and cons of BIM since a comparison could be made between the client's assumptions against the theory. In order to develop a proposal on how to increase the usage of BIM, all the previously collected data was combined to develop a foundation that is then built up with the collected empirical and theoretical data for the specific question.

    Findings: BIM is a foreign term for most of the clients in today’s industry, which makes the demand for correct BIM-models minimal or non-existing. Although the benefits of BIM creates more efficient, productive and quality-proof projects, the lack of knowledge, competence and proven projects in the Swedish construction industry creates a fear that makes the actors wait to make an investment. Therefore, the clients usually choose the visual short-term profits over the long-term profits.In order to streamline the usage of BIM an increased understanding of the potentials that BIM holds is needed. Competence development, training, a show of BIM completed projects in the Swedish construction industry, an appointed BIM coordinator in the early stages of the design processes and a standardization of a fileformat.

    Implications: BIM has a great potential in the construction industry. The use would mean a simpler and clearer process for the involved actors, which would benefit the engineers’ work, since safer and more effective calculations would be presented. This could result in lower overall costs, reduction and prevention of errors. However, the competence and knowledge of many of the clients are lacking at present and the use of BIM is considered unrealistic as one needs to readjust the entire market and perform an intensive learning process during the boom.

    Limitations: The thesis has been carried out in the Småland region and is limited to the client's perspective and a few entrepreneurs' perspective of BIM.

    Keywords: BIM, Clients, Developers, BIM streamlining.

  • 31.
    Alexandersson, Anders
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Gynne, Sven
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Ekonomisk utvärdering av betonggjutformar2007Independent thesis Basic level (degree of Bachelor), 10 points / 15 hpStudent thesis
    Abstract [en]

    This report will try to evaluate the use of rented concrete casting moulds, which are used to build walls and system of joists. The evaluation is only examining the economical aspects.

    The cost of using concrete casting moulds is a big part of the total production expenses. Therefore it is important that the calculated price not exceeds the final costs of the casting moulds. The calculated price is the price used in the process of making an offer.

    The evaluation consists of a comparison of the calculated price and the final costs for three building projects. It also evaluates the exploitation of the concrete casting moulds for each project.

    The report is made by Sven Gynne and Anders Alexandersson at School of Engineering, Jonkoping University, in cooperation with PEAB Jonkoping. The evaluation is strictly based on the calculated price and final cost of rented concrete casting moulds, only the moulds themselves, not the labour costs.

    Educational visits have been made to the three projects gathering facts. The conclusions we have drawn are that the difference between the calculated price and the final costs are considerable, especially one project have a greater difference than the others. The reasons for that are among other things tight building ground and a complicated building construction.

  • 32.
    Alexandra Markovic, Markovic
    et al.
    Jönköping University, School of Engineering, JTH, Mechanical Engineering.
    Arvid, Edforss
    Jönköping University, School of Engineering, JTH, Mechanical Engineering.
    An evaluation of current calculations for safety stock levels2017Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
  • 33.
    Ali, Rebaz
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineeering and Lighting Science.
    Alshami, Ahmed
    Jönköping University, School of Engineering, JTH, Civil Engineeering and Lighting Science.
    Sättningar i torvmaterialet: En fallstudie om användning av förstärkningsmetoden "förbelastning i form av överlast" på jordmaterial av torv2018Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Purpose: The aim of this degree project is to control the set-up for a longer period by means of the workplace at the use of the total station for then comparing calculated outcomes with real outcomes.

    Method: A combination of both quantitative and qualitative studies have been used in this degree project, consisting of literature studies and a case study including interviews, document analyzes, site visits and measurements. The case study is based on an ongoing project in the municipality of Nassjo, where a skate park is constructed and whose soil consists of peat. Preload in the form of overload has been applied.

    Findings: The result indicates the occurrence of a difference between calculated outcome and actual outcome regarding set rate and time course when using preload in the form of overload. The deviation is about 20 cm. Preload in the form of overload is a good method for peat land, but it is unlikely to be remarkably improved by vertical drainage.

    Implications: In view of the measurements produced by the authors, this shows that the method of loading in the form of overload on peat field works, however, gives the calculation model which has been used to be uncertain. The result described in more detail regarding vertical drainage on peat fields will not accelerate the process because the peat is already well drained. This means that it will cost extra without benefiting from the method.

    Limitations: The work has limited to two reinforcement methods on peat fields. A case study has been limited to only one area. There was preload in the form of overload, whose soil material consists of peat.

    Keywords: Peat, Permeability, Preloading in the form of overload, settlements, total station, vertical drainage, water quota.

  • 34.
    Alizadehsalehi, Sepehr
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineeering and Lighting Science. Civil Engineering Department, Eastern Mediterranean University, Turkey.
    Yitmen, Ibrahim
    Jönköping University, School of Engineering, JTH, Civil Engineeering and Lighting Science. Civil Engineering Department, Eastern Mediterranean University, Turkey.
    Celik, Tolga
    Civil Engineering Department, Eastern Mediterranean University, Turkey.
    Arditi, David A.
    Department of Civil and Architectural Engineering, Illinois Institute of Technology, United States.
    The effectiveness of an integrated BIM/UAV model in managing safety on construction sites2018In: International Journal of Occupational Safety and Ergonomics, ISSN 1080-3548, E-ISSN 2376-9130, p. 1-16Article in journal (Refereed)
    Abstract [en]

    Introduction. A variety of approaches exist to achieve better construction safety performance, but only a few consider a combination of building information modeling (BIM) and unmanned aerial vehicles (UAVs).

    Method. This article presents a four-dimensional (4D) BIM/UAV-enabled safety management model based on IDEF0 language. In the first step, potential hazards are identified with the help of safety specialists’ experiences and BIM software used in the design of the structure. Then, a UAV monitors the location of the potential hazards. The third step involves the integration of the 4D BIM-based model and the information obtained from the UAV. Finally, the combined data are analyzed and interpreted, and site safety staff are notified about measures to be put in place to prevent accidents.

    Results. This model shows a strong relationship between the design and construction phases by using BIM in the design phase and UAVs in the construction phase. The proposed safety model was evaluated by construction safety specialists in a two-pronged approach.

    Conclusion. The number of fatal, non-fatal and property damage-causing accidents may be significantly lower when the proposed system was used.

    Practical application. This model allows safety specialists to identify hazards and develop suitable mitigation strategies. 

  • 35.
    Alklid, Erik
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Finnander, Jakob
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Arbetsmiljömodell för byggarbetsmiljösamordnare på små byggföretag2016Independent thesis Basic level (degree of Bachelor), 180 HE creditsStudent thesis
  • 36.
    Alm, Jonathan
    et al.
    Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management.
    von Kiöhling, Marcus
    Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management.
    Lagerstyrningsmetoders påverkan på totalkostnad: Möjliga ufall för lager med säsongsvarierad efterfrågan2019Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Purpose – To analyze the impact on total cost by inventory control methods under the influence of seasonal demand. The purpose will be answered with following research questions:

    1. What inventory control methods can be used when there is seasonal demand?

    2. What is the impact of inventory control methods on total cost under the influence of seasonal

      demand?

    Method – The study was conducted as a case study and the empirical data was collected through interviews and document study. Both of these contributed to the basis for the analysis and for the calculations in the test of the study. Literature study was conducted and included theories for inventory control methods to answer the first research question, as well as formulas for the methods used to answer the second research question.

    Findings – It appears from the study, the inventory control methods that can be used when there is seasonal demand and during current planning environment is periodic ordering system and cycle service method. These have been tested further in the study. Seasonal index was considered an important method since it dimensions demand which to a high degree regulate the inventory levels and thereby the result of the inventory control methods. Further the study compares none theoretical inventory control methods and theoretical inventory control methods impact on total cost. It is shown that carrying costs, as a part of total cost, can be reduced by 25% during the peak season and 62% during off-season. This without changing the deliverability. Alternatively, the deliverability can be increased by 10% by using inventory control methods without increasing the total cost of the inventory.

    Implications – The theoretical contribution of the study is that it has increased the knowledge concerning inventory control methods when there is seasonal demand, and the possible results they might bring. The empirical contribution of the study is that companies can use the study as an indication of the economic benefits and motivation for implementing theoretical inventory control methods.

    Limitations – The tested inventory control methods did not alter the ordering cost, which to a high degree can have an impact on the total cost. The study also shows a possible impact on the inventory control during the current planning environment. If the planning environment changes, the result of the study can be different.

  • 37.
    Almqvist, Amanda
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Nordström, Emma
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Himmelstrand, Malin
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Klassificeringssystem för hållbar stadsutveckling2013Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The urbanization is increasing while there is a comprehensive climate change in the world. The cities stands for 70 percent of the global carbon emissions and two-thirds of the world's energy use. Half the world's population live in cities. Because of this, it is necessary that cities are sustainable. Therefore, there are various classification systems for neighborhoods that facilitates the creation of a sustainable city. However, there is no Swedish system but Breeam Communities is adapted to Swedish conditions.

    The objective of the report is to contribute to the development of methods that support sustainable urban development. By first identifying the classification systems, these could be compared with each other to see which criteria’s recurred. Parallels could be drawn as to which was more important, as the majority made use of these criteria. A sketching was made to find out what criteria should be included in the Swedish system and the regular criteria of the investigated classification systems were also very helpful.

    The systems that have been investigated are Breeam Communities, Casbee for Cities, One Planet Communities, Green Star Communities and Leed for Neighborhood Development. The systems measure sustainability usually infactors/criteria of social, economic and ecological aspects. Classification systems have different requirements or goals of what needs to be achieved within each factor. The systems are very different designed which complicated the comparison process.

    The regular criteria in all systems are carbon, water consumption, water pollution, food, wildlife and nature, floods, waste management, developed land, physicalactivity, accessibility, health and welfare, culture and heritage, transport, greenspaces, community involvement, light pollution, local economy and employment.

    Since Sweden has its own climate and its own standards, a foreign system is not adapted so easily to Swedish conditions. The criteria that should be part of a Swedish system is partly based on the global and national goals for Sweden as wellas those returned in the analyzed systems. In addition to the criteria that reappeared in the systems (some of the criteria has been renamed) it should also contain noise, nature, traffic, mixed development, security, maintenance and education.T

    There are many factors within the three perspectives to be analyzed and utilized to achieve a well-organized and good classification system of neighborhoods. There are many benefits of a classification system. For example, it facilitates informed choice, collaboration and communication between actors, but most of all a better society to live in.

  • 38.
    Almén, Christofer
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Samzelius, Olof
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Effektivisering av en tjänsteleverantörs processer: Genomfört som en fallstudie på köksprojekt2015Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Produktionskostnaderna i byggbranschen ökar ständigt och i en rapport utgiven av

    Sveriges byggindustrier kartläggs att uppemot 30-35 % av den totala

    produktionskostnaden i ett byggprojekt kan betraktas som slöseri.

    Slöseri kan beskrivas som de förbrukade resurser som inte skapar något värde för

    kunden, såsom förflyttning av material, väntan, avbrott, lagerhållning och

    överproduktion.

    Studien är genomförd på köksprojekt där Peab byggservice agerar tjänsteleverantör och

    bistår Ikea med monteringstjänster. Studien baseras på ett rikstäckande avtal som rör

    all typ av montering av Ikeas sortiment, dock har i denna studie endast monteringen av

    kök studerats. De förbättringsområden som har identifierats i rapporten har sedan

    analyserats och diskuterats med hjälp av verktyg från Lean. I rapporten benämns Peab

    byggservice som tjänsteleverantör och Ikea som leverantör.

    Syfte: Syftet med arbetet är att effektivisera en byggtjänsteleverantörs processer för att

    uppnå en ökad lönsamhet.

    Metod: För att uppnå målet och besvara frågeställningarna har arbetet utförts som en

    fallstudie av köksprojekt. Kvalitativa intervjuer och dokumentinsamling har använts

    som metoder och har varit en del av fallstudien. För att inhämta stöd i teorin och

    metoder som lämpar sig i det aktuella fallet har en litteraturstudie gjorts.

    För att identifiera slöseri i den befintliga processen har en värdeflödesanalys uppförts,

    det är ett verktyg från Lean med syfte att synliggöra köer, och andra icke värdeskapande

    aktiviteter.

    Resultat:

    I rapporten har:

    ● Processen gällande ett köksprojekt kartlagts.

    ● Olika former av slöseri identifierats.

    ● Verktyg från Lean analyserats för att minimera slöseri.

    Detta har lett till förslag på:

    ● Reducerade ledtider genom kombinerade aktiviteter.

    ● Kortare processtider genom effektivisering.

    ● Metoder för långsiktiga lösningar för att på sikt uppnå en effektivare process.

    Konsekvenser: Utifrån rapportens resultat konstateras möjlighet till förbättring. Slöseri

    har identifierats och förbättringsåtgärder med hjälp av framtagna teorier bedöms vara

    möjligt.

    Begränsningar: Resultatet är kopplat till generella problem och ger förslag på

    förbättringsarbete i de fall där en entreprenör agerar tjänsteleverantör åt en leverantör.

    Nyckelord: Processeffektivisering, Lean Production, Slöseri, Värdeflödesanalys.

  • 39.
    Alomar, Rahaf
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineeering and Lighting Science.
    George Joseph, Beinu Shyne
    Jönköping University, School of Engineering, JTH, Civil Engineeering and Lighting Science.
    The use of artificial intelligence in BIM and user preferences data: A framework for design sustainability evaluation and improved decision making2019Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Sustainability evaluation in building designs needs to consider the three aspects of sustainability, social, environmental and economic, simultaneously. The social aspect is less focused on the existing sustainability assessment methodologies and should be more incorporated in the assessment. The aim of this paper is to contribute a new method to sustainability evaluation that incorporates user preferences and important factors from the three aspects of sustainability and investigates Artificial intelligence (AI) for finding the best design that fits the user needs. Therefore, a framework in which a metric to compute the design quality of life (QoL) and an algorithm for evaluating design sustainability is proposed for best decision making. Building users, experts, and data from Building Information Modelling (BIM) simulation results were incorporated into the process. The study involves a literature review, a survey for collecting user preferences as methods and an experiment for testing the framework. Artificial data from designs and user is used in the experiment as inputs. The results demonstrate the feasibility of this framework to evaluate design sustainability and approximate the design that fits best the user’s requirements based on the three aspects of sustainability simultaneously. User preferences are incorporated into the framework to improve evaluating the social aspect of sustainability. More comprehensive design sustainability evaluation can be developed based on the proposed framework.

  • 40.
    Alsterlund, Karin
    et al.
    Jönköping University.
    Andler, Fanny
    Jönköping University.
    Hantering av oanvänt byggmaterial på byggarbetsplatser2018Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Purpose: The construction industry generates over 100 million ton of waste every year. When it comes to sustainability there is focus on material type, energy use, indoor climate, transports and waste. There are different certification systems that can be used to classify the buildings. In those certification systems there are no requirements on unused building material. 13 percent of the waste contains unused material. Unused material means material and products that are ordered to the construction site but is not used in the construction. The goal with the project is to analyse how to reduce the amount of unused material that goes to waste on big construction companies in Sweden.

    Method: This thesis is done through a qualitative study with the methods of literature study, document analysis and interviews. The literature study showed the current research front. Document analysis and interviews provided information about the companies sustainable goals, ethical regulations and working methods.

    Findings: The thesis shows that unused material occurs because of difficulties to quantify material because of the tight time schedule and not wanting to risk getting downtime in the production. The material gets damaged when it is handled on the construction site. The material is disposed to follow the ethical requirements of the company but is not in line with the sustainability goals. All interview responders agreed on the need of change to achieve the goal. The company has a working method where the trucks drive the material to a terminal and then out to the construction when it is time for the material to be used. This method could be used to minimize the disposal. Better communication between the projects would help unused material to be taken care of in a different project. The problem is that since it is different owners of the material depending on the purchase of contract it is not always easy to handle the material between the projects. To sell the unused material has been discussed before in the company but because of the lack of space and resource consumption it is problematic. Material also get damaged from the weather, but the lack of space is the reason why a tent not is a good solution.

    Implications: In order to reduce the occurrence of unused material, BIM, Lean, prefabrication and terminal management can be used. The materials that become unused can be taken care of in a different project, better communication between the projects will reduce material disposal.

    Limitations: The thesis is only theoretically analysing how to reduce disposal of unused material. No measures of time or economical aspects has been analysed. The work does not consider material like waste, consumables or material that are useable after demolishes. The result is useful in larger companies since smaller companies do not have the same problematics.

    Keywords: Building Information Modeling, BIM, disposal,  durability, environment, environmental objectives,  ethical rules, Lean Construction, material handling,  material waste, terminal management, unused building materials, waste and energy loss reduction.

  • 41.
    Altelind, Sara
    et al.
    Jönköping University, School of Engineering.
    Hallén Trifu, Cleo
    Jönköping University, School of Engineering.
    Kan mörker förhöja trygghetsupplevelsen i en parkmiljö?: Mörker som planeringsverktyg2017Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Darkness has for a long time had a big affect of how the humans perceive their spacial environment. When this study is written there is limited research of darkness related to lighting design, which increases interest in getting more knowledge of how darkness can influence the sense of security in a park environment.

    An experiment was conducted during two nights where the authors of this report illuminated a park using an increased focus of darkness, later on comparing this lighting with the park's existing lighting solution. People stopped by and responded to a safety and security experience questionnaire.

    The results clarified that the participants perceived the park with the lighting solution planned with darkness in mind as more secure than the existing lighting. The majority of participants in the survey confirmed that the delimitations had a big impact on how they experienced the park and their sense of security.

    Several factors may have affected the participants answers both nights, for example the weather, the participants mood, the lighting design, etcetera. But for this report the conclusion is that the focus on darkness has influenced the lighting solution and in turn the participants’ experience of the park. This type of planning needs to be tested in several locations so the user can draw a conclusion of how it affect people’s experience of exterior environment.

  • 42.
    Altgärde, Kristoffer
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Andreasson, Joel
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    En utredning av kommunala markanvisningspolicyer: Påverkan av lag 2014:8992016Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Det är sedan tidigare tydligt att det funnits problem och delade åsikter kring arbetet med markanvisningar innan lag 2014:899 trädde i kraft. Arbetets syfte var att undersöka om arbetet har förändrats efter att lag 2014:899 trädde i kraft. Målet med arbetet är att utreda de valda kommunernas markanvisningspolicyer och deras erfarenheter av arbetet med dessa. Förbättringsåtgärder föreslås efter att ha belyst svagheter i de markanvisningspolicyer som undersöktes, med utgångspunkt i lag 2014:899 samt punkter specificerade av Caesar et al. (2013). 

    Ett dokument med förslag till vad en markanvisningspolicy bör innehålla har tagits fram. Dokumentet kan underlätta kommuners arbete med markanvisningspolicyer i fortsättningen.

  • 43.
    Amanda, Öst
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Andréa, Sandin
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Mindre kommuners arbete med LOU och deltagandet av små byggentreprenörer2016Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Purpose: The problem is that small building entreprenuers generally don’t participatein public procurement since they are experiencing the process to be time-consuming,expensive and complicated. The main objective is to produce a proposal for howsmall municipalities can work to make the participation of small buildingentreprenuers in public procurement easier.

    Method: The main objective has been achieved with qualitative enquiries such asinterviews. These interviews have been made with three small municipalities and onesmall building entrepreneur.

    Findings: To make it easier for small building entreprenurs to participate in publicprocurement small municipalities can work with simplifying the administrativeregulations with the help of frequently asked questions from the entreprenurs. They can procure total contracts, partnering-projects or split contracts which afterward iscombined to a coordinated generalcontract. They can also try to keep a good contactwith their local entreprenuers. They can identify which documents that are necessaryto demand at the tendering and which they can submit afterwards. Another initiativeto increase the entreprenuers interest is to organize a gathering where the municipalitycan inform and answer questions about public procurement.

    Implications: The problem is not demarcated just in Sweden but throughout theEuropean Union. The proposal can be used in other member states but needs furtherdevelopment to make a greater difference during a longer perspective. Svenskt Näringsliv (2014) earlier warned that an increase of the direct procurement limitwould affect the competition badly. The essay clarify that the increase did not bringany difference to the competition since the municipalities uses internal guide-lines.The internal guidelines involves internal monetary limits for the municipalities. Thisis to ensure a good competition when procuring direct awards. Hopefully the proposalwill help to solve the overall problem that small building entrepreneurs generallydon’t participate in public procurement.

    Limitations: The essay only covers municipalities with a population ofapproximately 30.000 people, but the problem is most likely present in bigmunicipalities as well. It was a suitable boundary that was made becausemunicipalities with approximately 10 000 people often cooperate with bigmunicipalities. Such a small municipality would not contribute to the empirics thatwere necessary to fulfill the main objective.

    Keywords: Public procurement, Act (2007:1091) on public procurement,Municipality, Contract, Building entrepreneur.

  • 44.
    Amaya Segura, Sebastian
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineeering and Lighting Science.
    Snarberg, Kristofer
    Jönköping University, School of Engineering, JTH, Civil Engineeering and Lighting Science.
    En utredning angående ett snabbt cykelstråk längs Vätterns södra strand2018Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Purpose: In order to make it more attractive to use the bike as a means of transport, several cities have upgraded their bicycle tracks to bicycle highways. A bicycle highway allows cyclists to travel fast due to the qualities of the design. Several studies shows the impact of the bicycle highway considering a higher rate of bicycle usage. The aim of the thesis is to investigate a bicycle highway along the south beach of Vättern and its impact according to the objectives set by the municipality of Jönköping. A design proposal is thereafter being made, according to cyclists´ preferences and the objectives and conditions of the municipality of Jönköping, broken down into three issues: 

    • How can a bicycle highway contribute to Jönköping municipality’s objective of increasing bicycle traffic to and from the city centre? 

    • What do cyclists demand for the design of a bicycle highway? 

    • How can a favourable design of a bicycle highway look according to cyclists’ preferences in consideration of the conditions of Jönköping municipality? 

    Method: In order to answer the aim of the thesis, a case study is being conducted in Jönköping municipality through interview and document analysis. In order to locate cyclists’ preferences, a survey is conducted using a poll. Throughout the process, literature studies are being made in order to formulate a design proposal of a bicycle highway along the south beach of Vättern. 

    Findings: The result of question 1 shows that Jönköping municipality’s goal of increased bicycle traffic already has been achieved. The interview shows the complexity of the bicycle issue and the importance of connecting districts in order to increase the bicycle traffic.  

    Question 2 shows that cyclists prefer a cohesive road network, while pedestrians prioritize the safety against road crossing traffic in terms of the design of a cycle path. The qualities that are prioritized by the users contribute to an increased amount of the bicycle traffic. 

    Question 3 presents design proposals at critical places along the south beach of Vättern, where improvements should be made regarding the required standard for the bicycle highway. The improvements are results of analysis of collected empirical and theoretical framework.  

    Implications: The conclusion of the investigation shows that a bicycle highway contributes to more cyclists in a concentrated location, but the total amount of cyclists is unlikely to increase significantly. The route Jönköping – Huskvarna is considered to have the biggest potential. In order to get a more detailed view of the impact of the bicycle highway, the economic aspects are recommended as a main area for future studies. 

    Limitations: The location of the bicycle highway investigated in this report is set to the south beach of Vättern, between Bankeryd and Huskvarna. The economic factors and technical details are not included in the investigation. 

  • 45.
    Ameen, Yal
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Johansson, Jimmy
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    KOMMUNIKATION MELLAN PROJEKTÖR, BYGGLEDARE OCH ENTREPRENÖR I EN GENERALENTREPRENAD2017Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Purpose: The purpose of the survey is to investigate the communication between the contractor and the consultant in a construction project with general contract as a procurement form. Communication is lacking in previous research, which has contributed to negative aspects in terms of economics and time. This survey will result in improvement proposals to reduce communication problems.Method: The problem of the study was based on a literature study on communication problems in construction projects. The literature study has also been used to build the theoretical framework. Semi-structured interviews formed the basis for answering the questions in depth. In order to strengthen the interview response.Findings: The survey results in communication problems between the contractor and the consultant and the problems affect the projects negatively. The survey also found that the proportion of general contracts is decreasing.Implications: The conclusion of the survey is that through an increased opportunity for a two-way communication that contributes to improved communication opportunities between the participating players. Recommendations to increase the opportunity are:

    • Use of video calls gives the parties a two way communication.
    • Direct contact between contractor and consultant on technical issues (general contract) provides more efficient technical solutions and reduces the risk of misinterpretation.
    • More importance in providing feedback to all parties.
    • Allow the consultant (projector) to participate throughout the production phase allows for better upcoming actions.

    Limitations: The work is limited to communication between contractor and consultant in a general contract. Interviews were limited to Pontarius AB and NCC Construction with regard to the work time frame. The survey is generally adapted to other companies in the industry.

  • 46.
    Andersen, Alexander
    et al.
    Jönköping University, School of Engineering, JTH, Industrial Engineering and Management.
    Brewitz, Ludvig
    Jönköping University, School of Engineering, JTH, Industrial Engineering and Management.
    Prioritizing improvements at a shopping mall using an IPA framework approach2014Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Purpose – The purpose of this thesis work is to develop a model which can aid in prioritizing which customer service that should be the focus of improvement, using the two parameters; customers’ judgment of importance and the current performance as perceived by the customer. The thesis work examines customer services within a shopping mall In Thailand. To fulfill the purpose, three research questions were stated:

    1. How important is each of the three customer services: safety & security, cleaning operation and guest service according to the customer in a shopping mall in Thailand.
    2. How do Thai customers rank the current performance of the three customer services: safety & security, cleaning operation and guest service in a Thai shopping mall?
    3. How can a model be developed to aid in prioritizing where to focus improvements by combining values of customers’ judgment of importance and current perceived performance of the three customer services?

    Methodology – The gathering of data was done by interviewing and observing personnel of different customer services. This information was then used in creating surveys for the customers of the shopping mall to answer questions regarding the importance and performance of each service. A model was developed based on theories and the data gathered from the case study was used to illustrate its functions.

    Findings – The result of the first two research questions provided data which was used as input in the model created. The model is based on several theories and uses a “percentage of max” value to enable comparison between values. The model limits the “actual improvement” received when suggesting an improvement of a certain percentage by taking different theories into account.

    Implications – The model is made solely based on theories regarding customer satisfaction and performance and should therefore be seen as a guideline for practical use. The model focuses on the relation between importance and performance without any consideration to costs or any other parameters which has to be investigated and taken into consideration by the management team.

    Research limitations – This thesis work has been based around a single case study of a shopping mall in Thailand which could limit its generalization. However the model is solely based on theory and the data from the case study has only been used to test the model. Thus, the model should be applicable for other similar companies as long as the same input data can be gathered. Further studies could be done regarding how costs can be applied to the model as well as how different measurements. For example, the relation between amount of customers and amount of workers can be used in combination with the model.

  • 47.
    Andersson, Annie
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Matic, Tamara
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Jämförelse av fyra trärena fasadpaneler beträffande utseende, miljöpåverkan, beständighet och kostnad2016Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Syfte: Trä är ett förnyelsebart material som bidrar till mindre miljöpåverkan än andra material. Klimatförändringen leder till ökad nederbördsmängd som ställer högre krav på beständighet hos fasader, samtidigt ska ytterligare miljöpåverkan undvikas i bästa mån. Denna rapport utreder modifierat trä, ett sätt att förbättra träs beständighet som inte kräver underhåll och är ett alternativ för framtiden. Målet är att jämföra tre modifieringsmetoder, acetylering, furufrylering och värmebehandling, med cederträ beträffande beständighet, miljöpåverkan, kostnad och utseende för att öka användandet av modifierat trä som trärent fasadmaterial. Metod: Litteraturstudie visade på forskningsfronten för modifieringsmetoderna och dokumentanalysen gav kompletterande data om produkternas miljöpåverkan, utseende och beständighet. Intervjuer gav inblick i aktörernas roller vid valet av fasadmaterial samt klargjorde kostnader för metoderna. Ytterligare intervjuer gav kompletterande data till dokumentanalysen och visade skillnaden mellan beständighet och miljö- påverkan för modifieringsmetoderna. Observationer gjordes för värmebehandlat trä och furfurylerat trä. Resultat: Arkitekter och förvaltare har en stor påverkan på valet av fasad men det är beställaren som fattar beslut. För beställaren är priset den viktigaste parametern och därför skulle de flesta byggherrar välja värmebehandlat trä, det billigaste alternativet. Dock rangordnade de flesta miljöpåverkan som den viktigaste parametern som visar på att aktörerna går mot att använda metoder som är bra för miljön. Acetylerat trä visade sig vara det alternativet som forskare föredrar ur beständighetssynpunkt. Det är viktigt att veta vilka parametrar som är väsentliga för byggnaden och utifrån dem avgöra om fasaden är värd kostnaden som modifierat trä medför. Konsekvenser: Att använda modifierat trä är dyrt, men ett billigare alternativ än cederträ. Aktörerna tycker dig se en framtid för dessa metoder, men eftersom metoderna är dyra är marknaden begränsad till nischade beställare eller detaljplaner och främst användbara i mindre projekt. För att öka användandet av modifierat trä krävs större kunskap på marknaden, flera referensobjekt som kan hjälpa beställare att välja metoden samt tid och pengar i projekt för att utvärdera och välja modifierat trä. Begränsningar: Dokumentanalysen gav användbar empiri, men utbudet var begränsat då det fanns gott om information om vissa behandlingsmetoder och mindre om andra. Intervjuerna gav mycket empiri men visade på en okunskap om metoderna ute i branschen, trots avgränsningen till aktörer som aktivt arbetar med trä i byggnaden, vilket gjorde sista frågeställningen svårbesvarad. Överlag är en begränsning att det endast finns ett fåtal fasader med modifieringsmetoderna att utreda, vilket gjorde observationerna svåra.

  • 48.
    Andersson, Clas
    et al.
    Jönköping University, School of Engineering, JTH, Mechanical Engineering.
    Andersson, Edvard
    Jönköping University, School of Engineering, JTH, Mechanical Engineering.
    Analys och utvärdering av produktionsupplägg2011Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Toms in Habo moulds jelly candy. The company has a good demand for theirproducts while the factory's machines are in need of an upgrade. Therefore, newmachinery will be purchased and meanwhile there is a vision to change the layoutof the plant. A new arrangement of the plant is necessary because today's disposalof floor space lack conditions to produce large quantities. Toms have developed asuggestion of a new production arrangement, but an evaluation of this is needed.The thesis focuses on evaluating and developing the existing proposal to Toms. Inorder to do so four independent suggestions for a layout of the plant were madewith the method of Systematic Local Planning (SLP). The making of a situationanalysis clarified the conditions required to perform an SLP. The developedsuggestions were valued by a number of criteria. The criteria where establishedfollowing the conditions needed for production. The suggestion given the highestscore in the evaluation was then compared against the suggestion that wasdesigned by Toms. To clarify differences in flows between the various suggestionsarising from the work a spaghetti diagram were drawn for each suggestion.The comparison revealed that both suggestions were similar structured. Theevaluation shows that the suggestion that the thesis presents has a betterutilization of the area and an approach that makes it easier for the staff at thevarious workstations to see each other.Another issue has been how a requested molding machine is to be placed. Givenfrom the beginning have been two options from Toms. Our recommendation is inconsensus with the thesis highest scored suggestion, which means one of theoriginally given options.

  • 49.
    Andersson, Daniel
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    PARAMETRISK DESIGN I TIDIGA SKEDEN AV ARKITEKTONISKA PROJEKT2009Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
  • 50.
    Andersson, Daniel
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Andersson, Ludvig
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Vad skapar boendekvalitet?: Analys av småhusområden2012Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The purpose of this thesis has been to signify what creates quality for the dwellers. By

    creating a definition of the term we have showed how well the quality

    criteria’s has been fulfilled in the newly built one family house area Pumpkällehagen in Viskafors.

    The questions the thesis gives answers to is: What is quality for the dwellers in

    housebuilding of today? and How well have these quality aspects been carried out in tract

    housing areas? These questions have taken us to our main goal: To describe what quality

    for the dwellers is and how well it has been carried out in a certain area.

    The literature review is describing what was published before the making of this thesis.

    From four different publications within the concept of quality an analysis template has

    been enacted. This template has been used for our case study, but is also supposed to

    work in future analysis of tract housing areas.

    Interviews was carried out with the areas architects; Ola Nylander and Mattias Karlsson,

    as well as the client; Mikael Bengtsson. From these we have gathered their point of view

    on the background of the area, as well as their view on the term quality for the dwellers.

    Our work has brought us to enact nine different quality aspects, which we consider

    creates quality for the dwellers:

    • The Non-measurable properties

    • The rooms relative connections

    • Sufficient and user-friendly property complements

    • The property complements connection to the apartment

    • Location of the apartment and connections to the environment

    • Opportunities of outdoor activities

    • Orientation and transportation within the area

    • The social unity

    • The cost of the apartment and its form of tenure

    From the case study, using the analysis template, we can state that Pumpkällehagen is a

    very successfully built area where most of our assessment criteria’s and quality aspects

    have been fulfilled. That makes the quality for the dwellers as a total very high.

    We reach the conclusion that quality for the dwellers is what make you feel comfortable

    in your home, and therefore makes you stay.

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