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  • 3201.
    Susilo, Yusak
    et al.
    Delft University of Technology, Netherlands.
    Stead, Dominic
    Urban form, vehicle emissions and energy use of commuters in the Netherlands2007Conference paper (Refereed)
  • 3202.
    Susilo, Yusak
    et al.
    University of the West of England, Bristol, UK.
    Waygood, Owen
    A long term analysis of the mechanisms underlying children's activity-travel engagements in the Osaka metropolitan area2012In: Journal of Transport Geography, ISSN 0966-6923, E-ISSN 1873-1236, Vol. 20, no 1, p. 41-50Article in journal (Refereed)
    Abstract [en]

    Using a series of conventional large-scale household travel surveys conducted in the Osaka metropolitan area of Japan in 1980, 1990 and 2000 this study examines the mechanisms underlying children's activity and travel engagements and how these mechanisms have changed over time. The results from a structural equation model show that, in the last two decades, children's trip patterns in the Osaka metropolitan area have become more efficient through greater trip chaining. At the same time, the results also show that boys have become less mobile and their non-school activities tend to be in fewer locations than those of girls. Further, Japanese boys are the ones who travelled by car more frequently than girls. Denser built environments, accessibility by rail transport, and a higher number of school trips have constantly reduced the amount of children's private car trips in the last three decades. Moreover, private car availability did not significantly increase the amount of children trip chaining in any observed year. This finding goes against the commonly held belief that public transport is less suitable for trip chaining. This is presumably due to the travel environment created by the well developed transit networks and dense land use in the study area.

  • 3203.
    Susilo, Yusak
    et al.
    University of the West of England.
    Waygood, Owen
    The evolution of children's activity-travel engagements in the Osaka Metropolitan Area2011Conference paper (Refereed)
  • 3204.
    Susilo, Yusak
    et al.
    University of the West of England.
    Williams, Katie
    Lindsay, Morag
    Dair, Carol
    Does green in mean green out? An exploration of individual travel patterns and the influences of their environmental preferences in the UK “Sustainable Neighbourhoods”2010Conference paper (Refereed)
  • 3205.
    Susilo, Yusak
    et al.
    University of the West of England.
    Williams, Katie
    Lindsay, Morag
    Dair, Carol
    Sustainable urban design and residents’ environmental beliefs: Green travel pattern?2010Conference paper (Refereed)
  • 3206.
    Susilo, Yusak
    et al.
    KTH, School of Architecture and the Built Environment (ABE), Centres, Centre for Transport Studies, CTS. KTH, School of Architecture and the Built Environment (ABE), Centres, Centre for Traffic Research, CTR. KTH, School of Architecture and the Built Environment (ABE), Transport Science, Transport Planning, Economics and Engineering. KTH, School of Architecture and the Built Environment (ABE), Transport Science, System Analysis and Economics.
    Woodcock, Andree
    Liotopoulos, Fotis
    Duarte, Andre
    Osmond, Jane
    Abenoza, Roberto
    KTH, School of Architecture and the Built Environment (ABE), Transport Science, Transport Planning, Economics and Engineering.
    Anghel, Lucian Emanuel
    Herrero, Dolores
    Fornari, Federico
    Tolio, Virginie
    O'Connell, Eileen
    Markuceviciute, Ieva
    Kritharioti, Chrysoula
    Pirra, Miriam
    Deploying traditional and smartphone app survey methods in measuring door-to-door travel satisfaction in eight European cities2017In: WORLD CONFERENCE ON TRANSPORT RESEARCH - WCTR 2016 / [ed] Ulengin, F Li, K Boltze, M, 2017, p. 2262-2280Conference paper (Refereed)
    Abstract [en]

    This study describes the lessons learned from designing, deploying and analysing the results from different travel satisfaction survey tools which measures the travellers' door-to-door travel satisfaction. The travel satisfaction measurement survey tools tested consisted of two types of smartphone applications (a satellite navigation app and a game app), an on-line survey, a paper based semi-structured questionnaire and a focus group questionnaire. Each of the measurement tools comprised the same set of basic questions, but in different formats, aimed at exploring the pros and cons of each tool among different groups of travellers. The data collection was carried out at eight different European cities and five FIA motorist networks. 5,275 valid responses were gathered from the survey. Further analysis results show that different survey methods performed better in different sites. The satisfaction that was gathered via main trip leg does not necessarily correspond with overall satisfaction of the door-to-door journey. The results of this study highlight the need for more inclusive, complete, door-to-door, travel survey measurements.

  • 3207.
    Suwandaru, Alif Aditya
    Karlstad University, Faculty of Economic Sciences, Communication and IT, Department of Business Administration. Karlstad University, Faculty of Economic Sciences, Communication and IT, The Service and Market Oriented Transport Research Group. Gadjah Mada University.
    IMPLEMENTATION OF SERVICE DOMINANT LOGIC IN PUBLIC TRANSPORT (Case Study: Lampung Province)2013Independent thesis Advanced level (degree of Master (Two Years)), 40 credits / 60 HE creditsStudent thesis
    Abstract [en]

    ABSTRACT

     

    Private vehicle using is leading to increased traffic congestion, air pollution and mounting social disparities, especially at big city. Particularly in Lampung Province, Bandar Lampung as a capital of Lampung province is trying to initiate creating sustainable integrated public transportation and it has been started while several public transport companies together established Trans Bandar Lampung. At early, it was going really well and Bandar Lampung citizen started to use this Buss Rapid Transit System. However, due to Trans Bandar Lampung was built as private company, government did not fund subsidy for it. Trans Bandar Lampung started to face problem especially in maintenance term.

    Research methodology of this research is using qualitative research. By fitting between theories and data collection, qualitative research tends to be associated with words or images as the unit of analysis. The hypothesis was tested by spreading questioners to the respondents as primary data. The primary data is used to understand about public transport user in Lampung Province. On the other side, secondary data is used to analyze the current condition public transportation in Lampung Province.

    The objective of this research is to examine current condition public transport system in Lampung Province. Generating sustainable public transport system on Lampung Province, providing advice to prenting Trans Bandar lampung from collapse. Furthermore, this research also assess about performance of public transportation on Lampung. At the end, it will provide some reflection to developed counties; Zurich and Freiburg with the purpose of comparing their transportation and land use planning institutions, processes, and actions for the importance placed on achieving sustainability.

     

    Keyword: Public Transportation, Lampung, Performance, Service Dominant Logic, Sustainable, Integrated

  • 3208. Suzuki, Haruna
    et al.
    Fujii, Satoshi
    Friman, Margareta
    Karlstad University, Faculty of Economic Sciences, Communication and IT, The Service and Market Oriented Transport Research Group. Karlstad University, Faculty of Economic Sciences, Communication and IT, Department of Psychology. Karlstad University, Faculty of Economic Sciences, Communication and IT, Service Research Center.
    Olsson, E Lars
    Karlstad University, Faculty of Economic Sciences, Communication and IT, Department of Psychology. Karlstad University, Faculty of Economic Sciences, Communication and IT, Service Research Center. Karlstad University, Faculty of Economic Sciences, Communication and IT, The Service and Market Oriented Transport Research Group.
    Gärling, Tommy
    Karlstad University, Faculty of Economic Sciences, Communication and IT, Service Research Center. Karlstad University, Faculty of Economic Sciences, Communication and IT, The Service and Market Oriented Transport Research Group.
    Ettema, Dick
    How satisfaction with trip legs affect whole trip satisfaction?: Tests of models for aggregated satisfaction of work commutes2012Conference paper (Refereed)
  • 3209.
    Svedberg, Victoria
    Linköping University, Department of Science and Technology, Communications and Transport Systems. Linköping University, Faculty of Science & Engineering.
    Towards optimal railway track utilization based on societal benefit2018Licentiate thesis, monograph (Other academic)
    Abstract [en]

    Infrastructure managers in railway systems are striving to have as efficient track utilization as possible. There are no unanimous interpretation of efficiency in terms of track utilization, but the aim of the Swedish Transport Administration is to allocate track capacity such that societal benefit is maximized. This means that the tracks should be used by as much traffic as possible and by traffic that provides as much benefit for the society as possible.

    To allocate track capacity such that the track utilization is optimal would be an easy task if the track capacity were not a scarce resource. Today, many train operators share railway network and there are cases when two or more operators want to use the same track capacity at the same time. The infrastructure manager must then make priorities and reject some operators, and the question is which operators to reject. The guiding principle is to grant the operators that provide the highest societal benefit access to the tracks. However, the question would then change into how to know which operator that provides the highest societal benefit.

    In this thesis, the societal benefit of publicly subsidized traffic is estimated using social cost-benefit analysis. Mathematical models and methods are developed for quantifying and computing the number of departures for the publicly subsidized traffic and their distribution in time, i.e. a train timetable, that provides the maximal societal benefit in a social cost-benefit analysis setting. The societal benefit of commercial traffic is estimated using the market value for their requested train timetables. The market value is set using dynamic pricing. A suggestion of a dynamic pricing process that can be used in the train timetabling process is described. Mathematical models and methods for calculating the supply and demand of a track access request are developed and tested, which enables the use of a dynamic pricing process on track capacity  

  • 3210.
    Svedberg, Victoria
    et al.
    Linköping University, Department of Science and Technology. Linköping University, Faculty of Science & Engineering. SICS Swedish ICT AB, Sweden.
    Aronsson, Martin
    SICS Swedish ICT AB, Sweden.
    Joborn, Martin
    Linköping University, Department of Science and Technology, Communications and Transport Systems. Linköping University, Faculty of Science & Engineering. SICS Swedish ICT AB, Sweden.
    Railway Timetabling Based on Cost-Benefit Analysis2017In: 19TH EURO WORKING GROUP ON TRANSPORTATION MEETING (EWGT2016), ELSEVIER SCIENCE BV , 2017, Vol. 22, p. 345-354Conference paper (Refereed)
    Abstract [en]

    The congestion on the tracks are increasing and to plan all requested trains on the tracks become harder. The infrastructure manager must have good methods for ruling out which operator gets its requested timetable. These methods must maximise the welfare and the decision must also be fully transparent the operators. The aim of this paper is to develop and evaluate an optimization model for welfare cost. The welfare cost is minimised while considering the detailed constraints of the railway infrastructure. The resulting welfare cost can be used to perform a cost-benefit analysis to provide a value of possible future traffic. The cost-benefit analysis can be the base for several kinds of analyses, like finding the optimal number of departures or the best departure times, finding the economic value of a certain timetable, which are exemplified. The optimisation model is tested on a part of the Swedish railway network covering the entire area operated by the regional train operator Ostgotatrafiken. (C) 2016 The Authors. Published by Elsevier B.V.

  • 3211.
    Svennar, Rickard
    et al.
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management.
    Gunnarsson, Jonas
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management.
    Tillämpning av RFID i små och medelstora hamnar2012Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    According to Steenken et al. (2004) container shipping is corresponding to 60% of global shipments by sea. The use of container transport has increased tenfold since the mid80's. An increase in container traffic is according to Steenken et al. (2004) putting increased demands on ports logistics, management and selection of technical equipment. One technique that many writers argue for is the RFID technology which is an emerging technology that can facilitate more of these areas. It is the purpose of this study to investigate the applicability of using the RFID technology for efficient handling of containers in container terminals. In order to define the work, this study chose to focus on how RFID technology could be applied within the container terminal with RFID tags attached to the type of cargo containers. The research questions were: What are the critical factors for container terminals profitability? What areas are important to consider when applying the RFID technology? What opportunities for improvement entail application of RFID in container terminals? What problems or obstacles present themselves in the application of RFID technology in container terminals? To answer the purpose and questions of this study the authors of this study based on the theoretical framework developed an analysis model containing five key areas that should be examined to determine if RFID is adding value to applicable for the surveyed port or not. This model will be applied to two cases, Gävle Container Terminal and Zhuhai International Container Terminal Gaolan Limited. The study has demonstrated that RFID technology is applicable and can generate benefits in several areas of container terminals, but the study also found several barriers to success. These are particularly cost and standards. But the study also shows ways to circumvent them, including through the development of RFID with other stakeholders in the chain

  • 3212.
    Svennungsson, Anton
    University West, Department of Engineering Science, Division of Mechanical Engineering and Natural Sciences.
    Optimering av fyllnadsgraden i containrar lastade med laminatrullar2016Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Mölnlycke Health Care is a world-leading provider of single use surgical and wound care products for costumers, healthcare professionals and patients. The company has over 7 500 employees. Mölnlycke Health Care is active in over 90 countries and has manufacturing facilities in 9 different countries. When manufacturing a product, for example the laminate reels, different parts of the production are outspread on several factories. For the flow of the laminate reels, it starts in Belgium and will finish in Thailand. This means that there are a number of transports and logistic issues impacting the production flow. The laminate reels are loaded into containers before they are shipped to Thailand. The problem with the transportation is that the company is estimating that the fill rate of the containers is approximately 50 percent, which is inefficient and waste of resources and money. The purpose of the thesis is to identify the factors that result in a low filling rate and also suggest solutions to increase the fill rate.

    To gather information about fill rate and logistics literature studies have been done. Factors that affect the fill rate have been used as the basis when information about the current situation has been gathered and analyzed. Underlying factors to the low fill rate in the container has been ranked with a FMEA as a tool based on how much the specific factor affects the fill rate. The FMEA tool was then the basis when solutions to increase the fill rate were developed by using concept combinations table and concept sieving matrix.

    The thesis resulted in ten factors that affect the fill rate, also four ideas on solutions on how to increase the fill rate where engineered. Whish are labeled I, F, G and B.

    I – Optimizes the fill rate with 34 %, saving 2.6 million Swedish crones per year in transportation costs and reduces CO2 emissions by 161 208 kg per year.

    F – Optimizes the fill rate with 43,2 %, saving 3,3 million Swedish crones per year in transportation costs and reduces CO2 emissions by 205 777 kg per year.

    G – Optimizes the fill rate with 38,5 %, saving 2.9 million Swedish crones per year in transportation costs and reduces CO2 emissions by 179 544 kg per year.

    B – Optimizes the fill rate with 39,26 %, saving 3 million Swedish crones per year in transportation costs and reduces CO2 emissions by 136 138 kg per year.

  • 3213.
    Svensson, Christoffer
    et al.
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management.
    Matsson, Tobias
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management.
    Modell för analys och förbättring avförsörjningskedja med hänsyn till ett supply chain- och marknadsperspektiv2012Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Logistik kan bidra till kostnadsbesparingar bland företag vid användning av resurser, utöver det så kan en framgångsrik logistik ge företag fördelar när det handlar om att skapa värde åt kund. Vid marknadsföring så kan logistik även ha en stor inverkan på hur bra slutresultatet blir (Fuller et al., 1993). Hur bra kvalitén är på logistiktjänsterna är därför en viktig faktor inom marknadsföring för att skapa kundtillfredsställelse. För att effektivt kunna använda logistik som ett hjälpmedel för att få ett konkurrensmässigt övertag så krävs det ett samspel mellan företagets marknadsavdelning och de som arbetar med logistiska frågor (Mentzer et al., 2004).

     

    Syftet med denna undersökning är att utveckla och testa en modell för analys och förbättring av försörjningskedjor med hänsyn till ett supply chain- och marknadsperspektiv. Modellen har skapats med stöd av litteraturstudier och empiri i form av dokument och intervjuer från företaget, även möten med handledare. Målsättningen är att modellen ska vara generellt utformad, vilket gör att andra företag ska kunna använda sig av den. Den teori som vi har använt oss av och som återfinns i den teoretiska referensramen är främst insamlad via böcker och vetenskapliga artiklar.

     

    GLT-Laserstans är ett företag som befinner sig i Sandviken, de kan beskrivas som en legoverksamhet inom plåtindustrin som arbetar mot kundorder. Utöver legoverksamheten har de även en egen produktserie av tejphållare som de tillverkar. Dessa tejphållare anses som väldigt attraktiva på marknaden och de förekommer i många olika typer av varianter. Företaget vill ha hjälp med att undersöka vad de har för sorts kunder, vilka eventuella konkurrenter som finns och hur stark produkternas position är på marknaden.

     

    Resultatet av denna undersökning blev till slut en handlingsplan i punktform som företaget kan använda sig av vid det kommande förbättringsarbetet. Denna handlingsplan består av förbättringsförslag som är framtagna med hjälp av modellen och företaget kan sedan välja vilka punkter som man väljer att arbeta vidare med. Modellen applicerades med goda resultat vid denna studie.

     

    En slutsats som kan dras är att både logistik och marknadsföring syftar till att skapa värde för kund. Det som skiljer de två begreppen åt är de metoder som används för att skapa detta värde. Utan ett samspel mellan logistik och marknadsföring kan det vara svårt för organisationer att skapa hållbara förändringar.

  • 3214.
    Svensson, Tomas
    et al.
    Swedish National Road and Transport Research Institute.
    Hedström, Ragnar
    Swedish National Road and Transport Research Institute.
    Parkering: politik, åtgärder och konsekvenser för stadstrafik2010Report (Other academic)
    Abstract [sv]

    This report is based on a literature review, compiled research and development results on how parking conditions affect transportation choices. The report also discusses parking as a planning area, measures in parking policies, consequences for urban transport and urban development, and the need for overall parking strategies and plans linked to the traffic and urban planning in general.

  • 3215.
    Svensson, Tomas
    et al.
    Swedish National Road and Transport Research Institute.
    Henriksson, Per
    Swedish National Road and Transport Research Institute.
    Invånarnas syn på den framtida trafiken i Linköpings stadskärna: resultat från en enkätundersökning2010Report (Other academic)
    Abstract [sv]

    Traffic design in urban centres should be based on a balance between the access of individual motorists and road traffic impact on other traffic and on the urban environment in general. The municipal traffic and urban planning must therefore take responsibility for the design of traffic in the city centre. The question is which information and knowledge that the municipality will use? An alternative is to design surveys with different alternative visions or scenarios and in that way find out people's perception, which is the method chosen for the study presented in the report.

    A questionnaire was sent to a sample of all inhabitants in the municipality of Linköping aged 16-79 years. The questionnaire contains three different scenarios for traffic design in Linköping urban core.

  • 3216.
    Svensson, Tomas
    et al.
    Statens väg- och transportforskningsinstitut, Linköping, Sweden.
    Holmgren, Johan
    Linköping University, Department of Science and Technology, Communications and Transport Systems. Linköping University, The Institute of Technology.
    Kollektivtrafik som verktyg för regional utveckling: En kunskapsöversikt2012Report (Other academic)
    Abstract [en]

    This report aims to improve knowledge and decision making for more efficient use of public transport as a development tool. The discussion is based on the state of knowledge in public transport-related economic research with a focus on local and regional development and accessibility and mobility. The report is mostly a research review of published research, primarily from research on public transport economics and planning dimensions. The economic research on regions and cities high-lights a number of conditions described as central to economic growth in post-industrial economies. Examples of such conditions are the importance of agglomerations and clusters, differentiation and specialization, the service sectors´ growing importance for employment, regional innovation systems and last but not least, the ability of cities and regions to be attractive and offer residents good living conditions. One important implication of this is that the economic transformation towards growth and development is becoming more and more dependent on the availability of dense physical space. Therefore, cities and regions will be drivers of growth. All these conditions can be linked to opportunities for travel, transport, mobility and accessibility. This in turn means that public transport can be linked to these driving forces for economic development in terms of mobility and accessibility in general, but also more directly to the characteristics that public transport has in relation to other modes of transport. Public transport has a high capacity with a relatively limited demand for space. Therefore, public transport can be used to achieve the dense clusters which are prerequisites to exploit agglomeration economies, to realize economies of scale and contribute to favorable production conditions for the growing service sector. It is our opinion that a much stronger strategic dimension is needed in the planning of public transport. What matters are transport system development, operation and management, and how public transport should be used as a tool for regional development aimed at sustainable growth. In planning, several changes, measures and quality levels should be evaluated and applied perspectives must be wider than to focus solely on infrastructure investments. From the discussion follows that the spatial dimension is becoming increasingly important for economic development. Urban development, regional context, and how land use and transport interact should be lifted into the core of public transport planning. Regardless of the level of resources allocated to public transport, it is important that the resources are used to the best advantage. If sustainable economic development is prioritized, planning and governance of public transport should be changed in the direction discussed in the report.

  • 3217.
    Svensson, Tomas
    et al.
    Swedish National Road and Transport Research Institute.
    Summerton, Jane
    Swedish National Road and Transport Research Institute.
    Aktörers syn på hastighetsgränser i en region: ett arenaperspektiv2007Report (Other (popular science, discussion, etc.))
    Abstract [en]

    The Swedish Parliament passed the government bill “Vision Zero and the traffic safe society” (prop. 1996/97:137) in October 1997. However, the real development of traffic safety has not been in line with the prioritized goal. The current goal for safe traffic is a reduction to 270 fatalities during the year of 2007. The only measure that realistically could be effective for reaching this goal is a reduction in speed limits combined with an effective surveillance. A more ambitious use of the speed limit system as a tool for increased traffic safety requires knowledge about how speed limits are designed and set in the existing system. The purpose of this study is to describe and analyse regional actors’ perspectives on speed limits on roads in a specific region. The point of departure is a geographical limitation, the Swedish county of Östergötland, as well as an analytical framework, the arena perspective, which together are used to define relevant actors actively involved in planning and decision-making processes. The purpose is reached by describing and analysing how these actors conceptualise their work with speed and speed limits on the roads, as well as the context in which this work takes place. The analysis clearly shows that there is a common view on priorities and goals among local politicians, administrators at the Regional Development Council, and planners at the Swedish Road Administration. This alliance gives priority to relatively high speed limits and high road capacity for car traffic. These priorities are to a large extent shared by traffic engineers at the Swedish Road Administration. The view that there is an urgent need to intensify efforts to improve traffic safety is shared by traffic safety engineers at the Swedish Road Administration and local traffic planners at the municipalities. Other actors that are interviewed in the study are not positioned in the same straight-forward manner between different transport policy priorities. The planners at the County Administrative Board describe their dependency on the Swedish Road Administration’s competence. The police authorities only consider speed and speed limits as a question of surveillance. The firms in the study are very dependent on overriding institutional “rules of the game” on the market that define the prerequisites for competition between different firms. The functioning of the road transport system and speed limits are external factors that every actor on the market has to cope with. Further research should focus on the actors’ actual everyday practice in handling issues related to speed limits, i.e. how the actors actually meet, negotiate, deal with conflicts and make decisions in the everyday planning and decision-making processes in which they take part.

  • 3218.
    Svensson, Tomas
    et al.
    Swedish National Road and Transport Research Institute, Society, environment and transport, Mobility, actors and planning processes.
    Svensson, Helena
    Vectura.
    Det nya hastighetsgränssystemet: regionala beslutsfattares syn, problembilder och förväntningar2009Report (Other academic)
    Abstract [en]

    In 2008 and 2009 the Swedish Road Administration (SRA) introduces new speed limits based on a more flexible system. This means that the current speed limits are supplemented with 40, 60, 80, 100 and 120 km/h. The limits should be gradually adjusted according to how safe the road is and the degree of violence that the human body can withstand following a mistake. The purpose of this study is to provide a comprehensive description and analysis of regional actors' view on the new speed limit system, i.e. their problems, expectations of what the system should be able to achieve as well as views on how the implementation process has been performed so far. The changes that have been addressed in the study are those included in phase 1 of the introduction of the new system, i.e. changes in the speed limits on the national road network. The data were collected through interviews with representatives of the respondents, i.e. municipalities, regional development councils/regional cooperative bodies, county police and county administrative boards. To get a spread of interviews across the country three different regions were selected; the interviews were carried out in Skåne, Västra Götaland and Västerbotten. In each region approximately seven interviews were done and the material thus comprises a total of 21 completed interviews. In addition to interviews all the written opinions which were submitted to the SRA in the three regions in phase 1 have been used as research material in the study.

  • 3219.
    Svensson Ulgen, Veronica
    et al.
    Linnéuniversitetet.
    Björklund, Maria
    Linköping University, Department of Management and Engineering, Logistics & Quality Management. Linköping University, Faculty of Science & Engineering.
    Forslund, Helena
    Linneuniversitetet.
    Inter-organizational supply chain: Interaction for sustainability- a systematic literature review2018Conference paper (Refereed)
  • 3220.
    Sweeney, Edward
    et al.
    Dublin Institute of Technology, Ireland.
    Evangelista, Pietro
    University of Naples Federico II, Italy.
    Huge-Brodin, Maria
    Linköping University, Department of Management and Engineering, Logistics Management. Linköping University, The Institute of Technology.
    Isaksson, Karin
    Linköping University, Department of Management and Engineering, Logistics Management. Linköping University, The Institute of Technology.
    The Role of Third Party Logistics Providers (3PLs) in the Adoption of Green Supply Chain Initiatives2013In: The European Financial Review, ISSN 1389-6539, no July/August, p. 32-34Article, review/survey (Other (popular science, discussion, etc.))
    Abstract [en]

    The increasing importance of environmental sustainability has sharpened the focus on the need for innovative approaches to the purchasing of transport and logistics services. This article points out some of the challenges that purchasers of transport and logistics services, as well as their suppliers in the third party logistics (3PL) industry, are facing. These include the need for closer collaboration between 3PLs and their customers, as well as developing systems for the robust assessment of the environmental sustainability of services. The article is based on several years’ research experience in Ireland, Italy and Sweden.

  • 3221. Swärdh, Jan-Erik
    et al.
    Algers, Staffan
    KTH, School of Architecture and the Built Environment (ABE), Transport and Economics (closed 20110301), Transport and Location Analysis (closed 20110301).
    Willingness to accept commuting time for yourself and for your spouse: Empirical evidence from Swedish stated preference data2009Report (Other academic)
    Abstract [en]

    In this study, Swedish stated preference data is used to derive estimated values of commutingtime (VOCT). Both spouses in two-earner households are individually makingtrade-offs between commuting time and wage; both with regard to their own commutingtime and wage only, as well as when both their own commuting time and wageand their spouse’s commuting time and wage are simultaneously changed. Thus, we areable to compare how male spouses and female spouses value each other’s commutingtime. When only ones own commuting time and wage are attributes, the empiricalresults show that the estimated VOCT is plausible with a tendency towards high valuescompared to other studies, and that VOCT does not differ significantly betweenmen and women. When decisions affecting commuting time and wage of both spousesare analyzed, both spouses tend to value the commuting time of the wife highest. Forpolicy implications, this study provides additional support for the practice of valuingcommuting time higher than other private travel time. In addition, if VOCT were tobe gender specific, the value might be higher for women than for men in two-earnerhouseholds.

  • 3222.
    Syed, Haseeb Ahmed
    et al.
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management.
    Ajifowowe, Olanrewaju John
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management.
    Evaluation and assessment of relocation from a city to the outskirts: Case study DHL Gävle (Sweden)2018Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The ‘City Logistics’ activities are contributing to traffic congestion and accumulating to environmental challenges, such situation has prompted the creation of urban consolidation centre (UCC), as a multimodal logistics park facility in the outskirts.

    The relocation of business from a city to the outskirts requires the evaluation and assessment of the key factors in order to make the better decisions.

    However, no relocation decisions evaluation model has been found, neither its application on the case company to find the effects of relocation on the logistics firms.

    This study is aimed at developing general business relocation model, that can be used by logistics firms, to evaluate the effects of their relocation.  The model is a decision making tool.  

    Application of the model before the relocation, help’s in decision making. Therefore, this research study focuses on developing a general model involving selected important factors that can be considered by logistics firms to evaluate the effects of relocation.

    The results for this research were analysed using the qualitative method, predominantly literature review, factors were applied on the case company.

    The DHL’s relocation scenario from Gävle city centre (Näringen) to the proposed Tolvfors Logistics Park (outskirts), relocation led to transport cost and drive-time reductions, along with efficiency improvements. The evaluation model has been developed, have likewise presented the drivers of relocation, and factors that logistics firms can consider for relocation’s possible outcome.

  • 3223.
    Szekely, Bulcsu
    et al.
    Lappeenranta University of Technology, Finland.
    Saranen, Juha
    Lappeenranta University of Technology, Finland.
    Hilmola, Olli-Pekka
    Lappeenranta University of Technology, Finland.
    Toikka, Tero
    Lappeenranta University of Technology, Finland.
    Hilletofth, Per
    University of Skövde, Sweden.
    Globalization and international division of work: New ways of co-operation within lean production networks2008In: Proceedings of the 4th Railway logistics Seminar: Co-operation among Transportation Modes in Northern Europe, Kouvola, Finland, 2008, p. 181-198Conference paper (Refereed)
    Abstract [en]

    Specialization, higher competition and global markets have resulted on situation, where industrial companiesneed to transform their operating structures to more lean (efficient), but also being able maintain their agility(flexibility for changes in order that profitability is assured). This finding also got ground in our literature review– leanness and agility are not necessarily opposite paradigms in manufacturing companies. However, indeveloping economies implementing leanness, and having responsive logistics performance is characterized byfusion of macro logistics (governmental) and business logistics issues. Our three case studies verify literaturefindings, and shed some North-European and Russian perspective on the research regarding this topic. Based onfindings, both Finnish and Swedish case companies are increasingly favoring foreign suppliers, and emphasis isespecially on developing economies. Also integration of product life-cycles on the logistics decisions is vital,and input factor in logistics configuration decisions. Russian manufacturing unit case study, operating near-byFinnish border, reveals that properly working logistics flow is essential for business success, since deliveries arenot limited to Finnish Original Equipment Manufacturers or Russian markets, but Russian case company needsto manage shipments directly to China and India too. International shipments are managed through Finland,while manufacturing base is located in Russia.

  • 3224.
    Söderlind, Camilla
    University of Gävle, Faculty of Engineering and Sustainable Development.
    Analys av faktorer som påverkar interna leveransledtider: Dimensionering av lager2013Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    It is becoming increasingly important for companies to meet customer demands due to intense competition in today's global market, that forcing companies to improve their offerings and become better at managing their supply chain (Shen et al., 2006).  Long lead times can be reduced by using different methods and strategies shows various researches. Lead times occur in the planning, production, inventories and handling of products (Treville et al., 2003).

    The aim of the study is to develop a method to analyze the factors that affect the length of internal delivery lead time in manufacturing companies. The method also included suggestions for reducing delivery lead-time to internal customers.

    The main factors that influenced the length of the on delivery lead times has summarized to make a selection among the factors that can have the most significant impact. The selected elements will be used as a method to analyze how these areas affect a company’s length on internal delivery lead times.

    The study shows that the causes of the long delivery lead times was the location of the customer order point, uncertain forecasts, long material and production planning time, and long waits in the production and storage.

    The delivery lead time, according to this report’s suggested improvements reduced by centralizing CODP and makes more reliable forecasts. This would lead to improved planning capabilities. Although, to create regulation between companies and their internal customers may lead to reduce delivery lead times

  • 3225.
    Sörensen, Gunilla
    et al.
    Swedish National Road and Transport Research Institute, Traffic and road users, Traffic safety, society and road-user.
    Wiklund, Mats
    Swedish National Road and Transport Research Institute, Infrastructure, Infrastructure maintenance.
    Åtgärder för att minska hastighet förbi vägarbetsplatser: utvärdering baserad på tre fältförsök2011Report (Other academic)
    Abstract [en]

    A state-of-the-art literature survey concerning the improvement of road-work safety has previously been carried out. A list of potential new measures was produced and several of these were prioritized, for further investigation, by the Swedish Road Administration. The investigations of three of these prioritized measures are documented in this report: - Intelligent congestion warning system, - Dynamic message sign (DMS), - Optical speed bars. The measures were tested in field at real road-works and all three measures, each in their own way, have the potential to increase traffic safety at road-work zones. In the report, questions that remain to be answered are highlighted and some alternative designs of the measures are proposed.

  • 3226.
    Tadaros, Marduch
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences.
    Reverse Logistics for Lithium-ion Batteries: A study on BPEVs in Sweden2019Independent thesis Advanced level (professional degree), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    In recent years the amount of newly registered electric vehicles, hybrid electric vehicles, and plug-in hybrid electric vehicles has increased rapidly in the Swedish market. These vehicles could be classified as battery-powered electric vehicles, and a majority carry a lithium-ion battery. The demand for lithium is expected to increase considerably, as a result of such a swift growth in battery-powered electric vehicles. Thus, if the recycling rate of lithium stays at a low level, demand could reach a scarcity-level by 2050. While neither any infrastructure nor an established process for recycling lithium-ion batteries currently exists in Sweden, this study aims to provide necessary input and verified tools for the design of a future reverse supply chain for discarded lithium-ion batteries in Sweden.

    The literature review of this study covers the subjects of reverse logistics, supply chain network design, and operations research. A thorough situation analysis of the Swedish market for battery-powered electric vehicles is conducted, and the composition, function, and characteristics of lithium-ion batteries are studied. The study finds that estimations of future demand of recyclable lithium-ion batteries in Sweden could be between 206 711 and 726 974 tons accumulated, based on actual and predicted sales numbers until 2030. Even if it is obvious that there are going to be large quantities of such batteries requiring recycling in the future, and even if some established processes exist, there is no defined supply chain for the collection of those batteries. Finally, a mixed-integer programming model for the design and development of a future reverse supply chain is presented. The model, characterized as a discrete multi-period facility location/allocation model, can with minor modifications be used for problems with fluctuating demand or when the demand is assumed to slowly progress until it has reached a steady state.

  • 3227.
    Takala, Josu
    et al.
    Department of Production, University of Vaasa, Vaasa, Finland.
    Liu, Yang
    Department of Production, University of Vaasa, Vaasa, Finland.
    Feng, Bin
    Department of Information Technology, Vaasa University of Applied Sciences, Vaasa, Finland.
    Yang, Wenshan
    Department of Production, University of Vaasa, Vaasa, Finland.
    Analytical Evaluation of Sustainable Competitive Advantage2013In: Elsevier IFAC Publications / IFAC Proceedings series, ISSN 1474-6670, Vol. 46, no 9, p. 1240-1243Article in journal (Refereed)
    Abstract [en]

    This paper introduces a novel idea to model and evaluate the level of sustainable competitive advantage (SCA) in a company’s operations, basing on the development directions of the manufacturing strategy and the effectiveness/sufficiency of its supporting resource allocation. The SCA evaluation model explores whether the real resource allocation supports the desired operations strategy and provide a guidance to help decision makers to find out the sustainability of the company’s current operational competitiveness. The model has been undergoing weak market tests in a multinational case company and the analysis results are promising according to the feedback opinions.

  • 3228.
    Talak, Rajat
    et al.
    MIT, 77 Massachusetts Ave, Cambridge, MA 02139 USA..
    Manjunath, D.
    Indian Inst Technol, Mumbai, Maharashtra, India..
    Proutiere, Alexandre
    KTH, School of Electrical Engineering and Computer Science (EECS), Automatic Control.
    Strategic arrivals to queues offering priority service2019In: Queueing systems, ISSN 0257-0130, E-ISSN 1572-9443, Vol. 92, no 1-2, p. 103-130Article in journal (Refereed)
    Abstract [en]

    We consider strategic arrivals to a FCFS service system that starts service at a fixed time and has to serve a fixed number of customers, for example, an airplane boarding system. Arriving early induces a higher waiting cost (waiting before service begins) while arriving late induces a cost because earlier arrivals take the better seats. We first consider arrivals of heterogenous customers that choose arrival times to minimize the weighted sum of waiting cost and cost due to expected number of predecessors. We characterize the unique Nash equilibria for this system. Next, we consider a system offering L levels of priority service with a FCFS queue for each priority level. Higher priorities are charged higher admission prices. Customers make two choicestime of arrival and priority of service. We show that the Nash equilibrium corresponds to the customer types being divided into L intervals and customers belonging to each interval choosing the same priority level. We further analyze the net revenue to the server and consider revenue maximizing strategiesnumber of priority levels and pricing. Numerical results show that with only a small number of queues (two or three) the server can obtain nearly the maximum revenue.

  • 3229.
    Tamasiunas, Antanas
    et al.
    Jönköping University, Jönköping International Business School, JIBS, Centre of Logistics and Supply Chain Management.
    Pang, Jinxu
    Jönköping University, Jönköping International Business School, JIBS, Centre of Logistics and Supply Chain Management.
    Coordination between Firms and their Logistics Service Providers: What do Firms in Sweden Think About the Coordination Carried Out by their LSPs?2013Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    In this thesis 5 Swedish companies that use logistics service providers (LSPs: carriers, intermediaries and third party logistics providers) are interviewed to establish how Swedish LSPs fare in terms on coordination. More specifically, the research is focused on answering 3 questions: (1) what are users’ perceptions about their LSPs’ coordination, (2) what coordination behaviors are the LSPs most and least successful in, and (3) what factors are affecting LSPs’ coordination.

  • 3230.
    Tamin, Ofyar Z.
    et al.
    Department of Civil Engineering, Bandung Institute of Technology.
    Dharmowijoyo, Dimas B.E.
    Department of Civil Engineering, Bandung Institute of Technology.
    Selection of Environmental Sustainable Transportation Strategies Suited for Large Cities in Indonesia2011In: Proceedings of the Eastern Asia Society for Transportation Studies: The 9th International Conference of Eastern Asia Society for Transportation Studies, 2011, 2011Conference paper (Refereed)
    Abstract [en]

    The congestion problems usually arise in cities with a population more than 1 million inhabitants, until 1996 had been attained by several cities in Indonesia, such as: DKI-Jakarta, Surabaya, Medan, Bandung, and, Yogyakarta. In 2025, an estimated urban population in Indonesia will reach 150 million inhabitants (about 60%) of the total population of Indonesia that estimated 250 million inhabitants. Centre for Sustainable Development (1997) defines sustainable transportation system as a system that provides access to basic needs of society as a safe and consistent with human health and ecosystems. Sustainable transportation is one aspect of the overall sustainability (global sustainability) which has three interrelated components, namely: environment, society, and economy. This paper aim to choose the strategies that can be implemented in Indonesia based on 16 studies before or best practice. There are two required criterions to determine the priority of strategies. The estimation is using Analytical Hierarchy Process or AHP. This technique utilizes mathematic approach to choose or categorized the strategies that spread from 16 important studies in Asia, Europeand America. Few studies were conducted by quantitative method and influence the most background the selection of strategies.

  • 3231.
    Tang, Shengjie
    Linköping University, Department of Science and Technology, Communications and Transport Systems. Linköping University, The Institute of Technology.
    Traffic safety analysis for cyclists at roundabouts, a case study in Norrköping2018Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Cyclists as vulnerable road users are oftentimes unprotected with exposed human body, can fall easily and sustain serious injuries when encountered collisions, especially with motorists. At roundabouts, accident reduction rate for cyclists is rather uncertain or sometimes less favorable compared to other road users (e.g. motorists, pedestrians). This thesis focuses on advancing the understanding of traffic safety issues for cyclists at roundabouts by identifying concerns faced by cyclists and evaluating their designs to find out which configuration has high or higher safety level towards cyclists. The research approach adopted in this work includes a wide review of relevant literature on cyclist safety and roundabouts and the implementation of empirical research, the latter was carried out through a Case Study in Norrköping city by obtaining cyclist related accident data from Swedish Traffic Accident Data Acquisition database to identify roundabouts with high cyclist-related accidents in the city assisted with PTV Visum Safety tool and fetching traffic volume from city network model operated by Norrköping Municipality for each identified roundabout. The main findings from this research conclude that single-lane roundabouts with separated cycle paths in high traffic volume setting provide better or higher safety performance for cyclists compared to other roundabout configurations.

  • 3232.
    Tanko, Michael
    et al.
    KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering.
    Burke, M. I.
    Yen, B.
    Water transit and excess travel: discrete choice modelling of bus and ferry trips in Brisbane, Australia2019In: Transportation planning and technology (Print), ISSN 0308-1060, E-ISSN 1029-0354, Vol. 42, no 3, p. 244-256Article in journal (Refereed)
    Abstract [en]

    Recent investment in urban ferry transport has created interest in what value such systems provide in a public transport network. In some cases, ferry services are in direct competition with other land-based transport, and despite often longer travel times passengers still choose water transport. This paper seeks to identify a premium attached to urban water transit through an identification of excess travel patterns. A one-month sample of smart card transaction data for Brisbane, Australia, was used to compare bus and ferry origin–destination pairs between a selected suburban location and the central business district. Logistic regression of the data found that ferry travel tended towards longer travel times (OR = 2.282), suggesting passengers do derive positive utility from ferry journeys. The research suggests the further need to incorporate non-traditional measures other than travel time for deciding the value of water transit systems.

  • 3233.
    Tanko, Michael
    et al.
    KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering.
    Cheemakurthy, Harsha
    KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering.
    Hall Kihl, Susanna
    KTH.
    Garme, Karl
    KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering, Naval Systems. KTH, Superseded Departments (pre-2005), Aeronautical and Vehicle Engineering.
    Water transit passenger perceptions and planning factors: A Swedish perspective2019In: Travel Behaviour & Society, ISSN 2214-367X, E-ISSN 2214-3688, Vol. 16, p. 23-30Article in journal (Refereed)
    Abstract [en]

    Increased urban congestion in cities has led to suggestions for the greater use of inland waterways for passenger transit. However, there has been relatively little exploration of how water transit differs in terms of passenger service attributes compared to other transport modes and how passenger attitudes toward water transit service factors may affect overall satisfaction. The present study attempts to address this gap in knowledge in a study of water transport users in Stockholm, Sweden in order understand how water transit fares compared to other modes. Building on the literature of attitudinal studies for other transit modes, a survey was conducted in the Stockholm metropolitan area of water transit users on the primary inner-city water transit route. Details on trip characteristics, demographic and passenger's attitudes toward service attributes and their satisfaction was collected. After factor analysis, a structural equation model is proposed to explore the impact of service characteristics on global customer satisfaction. The results indicate that the latent factor comfort, including indicators such as cleanliness of vessel and environmental and scenic factors were more significant in explaining overall passenger satisfaction, above service issues such as network size and frequency. The finding supports the growing body of research highlighting the importance of such experiential factors in explaining customer satisfaction within public transport. Greater incorporation of such non-traditional service attributes can therefore give a better picture of transit user mode choice behavior and aid in future service planning ongoing policy development of the water transit network in Stockholm. © 2019 Hong Kong Society for Transportation Studies

  • 3234.
    Tao, Liangyan
    et al.
    Stockholm University, Faculty of Social Sciences, Stockholm Business School. Nanjing University of Aeronautics and Astronautics, China.
    Wu, Desheng Dash
    Stockholm University, Faculty of Social Sciences, Stockholm Business School. University of Chinese Academy of Sciences, China.
    Liu, Sifeng
    Dolgui, Alexandre
    Optimal due date quoting for a risk-averse decision-maker under CVaR2018In: International Journal of Production Research, ISSN 0020-7543, E-ISSN 1366-588X, Vol. 56, no 5, p. 1934-1959Article in journal (Refereed)
    Abstract [en]

    This study investigates a due date quoting problem for a project with stochastic duration, taking the decision-maker's risk attitude into consideration. The project profit is defined as the difference between the price and the cost that is comprised of production cost and earliness-tardiness penalties. In this situation, the due date determination has to be modelled as a stochastic optimisation due to stochastic duration. Conditional value at risk is thus employed as a performance measure to describe the decision-maker's risk attitude. In fixed price contract, when the unit production cost is not smaller than the unit penalty on earliness, the optimal due date increases with the increase of the degree of a decision-maker's risk aversion, the unit penalty on delay, and the decrease of the unit penalty on earliness. Besides, when the price is proportional to the due date and the slope is no bigger than the unit penalty on tardiness, the optimal due date is smaller than the result in fixed price. This is because high price for a short due date encourages a decision-maker to quote a small due date. Further, we compare the optimal due date in different parameter setting where the penalty coefficient of earliness is negative or zero, which means there is reward or no penalty on earliness, respectively. Finally, a case study is conducted to validate the effectiveness and efficiency of the proposed model.

  • 3235.
    Tao, Meijun
    et al.
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management.
    Zhang, Chen
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management.
    How to select optimal TPL providers2012Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    For a long time logistics have been an important part of industrial activities. Dated from 1970s, with the emergency of third party logistics (TPL), companies began to think about insourcing or outsourcing. As the development and expansion of TPL, outsourcing logistics activities to third party logistic have became a worldwide trend.

    Companies could gain a competitive advantage from outsourcing. Outsourcing to TPL providers could make companies focus on their core tasks. An appropriate TPL provider could apply technology and expertise, which help companies reducing costs and improving services. Flexibility and efficiency can also be achieved by adopting good TPL providers. In this sense, helping companies to make outsourcing decisions and to select optimal TPL providers is meaningful.

    The purpose of this thesis is to bring a holistic view of third party logistics and to build models for companies to select optimal TPL providers. To achieve the purpose, relevant literatures were reviewed to gain theoretical bases. Qualitative and quantitative research methods are both used in the thesis.

    Two models for selecting TPL providers were built in the thesis. One was qualitative model that contained four steps: defining problems, formulate criteria, qualify selection process and finally make decision. The other one was a quantitative model with DEA method. It contained six steps: define problem, select candidates, select criteria and indicators, determine input and output and collect data, calculate the efficiency and make final decision.

    Each model was applied on a case study to examine its validity and feasibility. Both advantages and disadvantages were found during the case studies. The conclusion is that both of models could be used for companies and it allows a company to choose the most suitable one.

  • 3236.
    Tapani, Andreas
    Swedish National Road and Transport Research Institute. Linköpings universitet, Kommunikations- och transportsystem.
    Evaluation of safety effects of driver assistance systems through traffic simulation2006Conference paper (Other academic)
  • 3237.
    Tapani, Andreas
    Linköping University, Department of Science and Technology, Communications and Transport Systems. Linköping University, The Institute of Technology. Statens väg- och transportforskningsinstitut.
    Integrerad fordons- och trafiksimulering för uppskattning av emissioner och energieffektivitet2013Conference paper (Other academic)
  • 3238.
    Tapani, Andreas
    Swedish National Road and Transport Research Institute, Society, environment and transport, Traffic analysis and logistics. Linköpings universitet, Kommunikations- och transportsystem.
    Integrerad fordons- och trafiksimulering för uppskattning av emissioner och energieffektivitet2013Conference paper (Other academic)
  • 3239.
    Tapani, Andreas
    Swedish National Road and Transport Research Institute. Linköpings universitet, Kommunikations- och transportsystem.
    Simulering av trafik på landsväg2004Conference paper (Other academic)
  • 3240.
    Tapani, Andreas
    et al.
    Linköping University, Department of Science and Technology, Communications and Transport Systems. Linköping University, The Institute of Technology. Statens väg- och transportforskningsinstitut (VTI).
    Olstam, Johan
    Linköping University, Department of Science and Technology, Communications and Transport Systems. Linköping University, The Institute of Technology. Statens väg- och transportforskningsinstitut (VTI).
    Microscopic modelling of 2+1-roads2013Conference paper (Other academic)
  • 3241.
    Tapani, Andreas
    et al.
    Swedish National Road and Transport Research Institute, Society, environment and transport, Traffic analysis and logistics.
    Olstam, Johan
    Swedish National Road and Transport Research Institute, Society, environment and transport, Traffic analysis and logistics. Linköpings universitet, Tekniska högskolan.
    Microscopic modelling of 2+1-roads2013Conference paper (Refereed)
    Abstract [en]

    Alternative road designs with overtaking restrictions and periodic overtaking lanes, so-called 2+1 roads, are used as low-cost alternatives to increase safety on two-lane roads. However, there are potential implications of these road designs on the quality of service. To ensure acceptable quality of service, there is a need for trac analysis tools to support the design of 2+1-roads. This paper presents an extended version of the RuTSim microscopic trac simulation model including models of characteristic speed adaption, overtaking and merging behaviour on 2+1 roads. Numerical experiments are used to verify that the model reproduces fundamental characteristics of trac on 2+1-roads

  • 3242.
    Tapani, Andreas
    et al.
    Swedish National Road and Transport Research Institute, Society, environment and transport, Traffic analysis and logistics. Linköpings universitet, Kommunikations- och transportsystem.
    Pereyron, Florian
    Viera Turnell, Mathew
    Integrated vehicle and traffic simulation for emissions and energy efficiency estimation2012In: Proceedings of the 17th international conference of Hong Kong society for transportation studies: Transportation and Logistics Management / [ed] H-Y. Mak and H.K. Lo, Hong Kong: Hong Kong Society for Transportation Studies (HKSTS) , 2012, p. 359-366Conference paper (Other academic)
  • 3243.
    Tapani, Andreas
    et al.
    Linköping University, Department of Science and Technology, Communications and Transport Systems. Linköping University, The Institute of Technology.
    Pereyron, Florian
    Viera Turnell, Mathew
    Integrated vehicle and traffic simulation for emissions and energy efficiency estimation2012In: Proceedings of the 17th international conference of Hong Kong society for transportation studies: Transportation and Logistics Management / [ed] H-Y. Mak and H.K. Lo, Hong Kong: Hong Kong Society for Transportation Studies (HKSTS), 2012, p. 359-366Conference paper (Other academic)
  • 3244.
    Tapani, Andreas
    et al.
    Linköping University, Department of Science and Technology, Communications and Transport Systems. Linköping University, The Institute of Technology. Statens väg- och transportforskningsinstitut (VTI).
    Rydergren, Clas
    Linköping University, Department of Science and Technology, Communications and Transport Systems. Linköping University, The Institute of Technology.
    Modellering av stadstrafik med resekedjor som inkluderar cykel och andra färdmedel2013Conference paper (Other academic)
  • 3245.
    Tapani, Andreas
    et al.
    Swedish National Road and Transport Research Institute, Society, environment and transport, Traffic analysis and logistics. Linköpings universitet, Kommunikations- och transportsystem.
    Rydergren, Clas
    Linköpings universitet, Kommunikations- och transportsystem.
    Modellering av stadstrafik med resekedjor som inkluderar cykel och andra färdmedel2013Conference paper (Other academic)
  • 3246. Tarigan, Ari
    et al.
    Susilo, Yusak
    University of the West of England.
    Joewono, Tri Basuki
    Negative experiences and willingness to use paratransit in Bandung, Indonesia: An exploration with ordered probit model2010Conference paper (Refereed)
  • 3247. Tavasszy, L.
    et al.
    de Jong, Gerard
    KTH, School of Architecture and the Built Environment (ABE), Centres, Centre for Transport Studies, CTS. University of Leeds, United Kingdom .
    Comprehensive Versus Simplified Models2013In: Modelling Freight Transport, Elsevier, 2013, p. 245-256Chapter in book (Refereed)
    Abstract [en]

    Many factors play a role in the decision how complex a model should become. The essence of modelling is to produce a replication of a system that is as rich as needed, with a model specification that is as lean as possible. Usually, a desire for a model that is both broad in scope and deep in detail, is detrimental for the modelling process (and result, eventually). In many cases, there are strict limits to model complexity due to constraints in data availability or computer power. This chapter intends to provide a simple guide for practical modelling applications, especially for those situations where there is a pressure for developing simple models, that follow the basic 4-step transport model architecture. We discuss the idea of model complexity including its relation to transport policy, and present strategies to implement the 4-step architecture, depending on the desired level of complexity. These strategies include the modelling of partial systems, integration of submodels and aggregation of agents.

  • 3248. Tavasszy, L.
    et al.
    de Jong, Gerard
    KTH, School of Architecture and the Built Environment (ABE), Centres, Centre for Transport Studies, CTS.
    Data Availability and Model Form2013In: Modelling Freight Transport, Elsevier, 2013, p. 229-244Chapter in book (Refereed)
    Abstract [en]

    Data are essential for any empirical modelling effort. In freight transport, obtaining good data for modelling can be a challenge because of the difficulty to observe freight processes directly, the often proprietary nature of logistics data, and a relatively poor data acquisition infrastructure. In this chapter we review the different data sources for freight modelling, including data for trade, logistics and transport by different modes of transport. We discuss which sources can be used for which models. In every practical modelling situation, data limitations will remain. We discuss two main strategies to overcome them: adapting the model to a simplified form and estimating the missing data from the available information. The chapter concludes with listing some challenges for research into data acquisition for the future.

  • 3249. Tavasszy, L.
    et al.
    de Jong, GerardKTH, School of Architecture and the Built Environment (ABE), Centres, Centre for Transport Studies, CTS. University of Leeds, United Kingdom .
    Modelling Freight Transport2013Collection (editor) (Refereed)
    Abstract [en]

    Freight Transport Modelling is a unique new reference book that provides insight into the state-of-the-art of freight modelling. Focusing on models used to support public transport policy analysis, Freight Transport Modelling systematically introduces the latest freight transport modelling approaches and describes the main methods and techniques used to arrive at operational models. As freight transport has grown exponentially in recent decades, policymakers now need to include freight flows in quantitative evaluations of transport systems. Whereas early freight modelling practice was inspired by passenger transport models, by now it has developed its separate stream of methods and techniques inspired by disciplines such as economic geography and supply chain management. Besides summarizing the latest achievements in fundamental research, this book describes the state of practice and advises practitioners on how to cope with typical challenges such as limitations in data availability.

  • 3250.
    Taylor, Nicholas B
    et al.
    Transport Research Laboratory (TRL).
    Nitsche, Philippe
    Austrian Institute of Technology (AIT).
    van Rooij, Lex
    TNO.
    Bernhardsson, Viktor
    Swedish National Road and Transport Research Institute, Society, environment and transport, Traffic analysis and logistics.
    Mocanu, Isabela
    Austrian Institute of Technology (AIT).
    Olstam, Johan
    Swedish National Road and Transport Research Institute, Society, environment and transport, Traffic analysis and logistics.
    Report on best practice, needs and derived incident scenarios2015Report (Other academic)
62636465666768 3201 - 3250 of 3620
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  • rtf