umu.sePublications
Change search
Refine search result
1 - 23 of 23
CiteExportLink to result list
Permanent link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Rows per page
  • 5
  • 10
  • 20
  • 50
  • 100
  • 250
Sort
  • Standard (Relevance)
  • Author A-Ö
  • Author Ö-A
  • Title A-Ö
  • Title Ö-A
  • Publication type A-Ö
  • Publication type Ö-A
  • Issued (Oldest first)
  • Issued (Newest first)
  • Created (Oldest first)
  • Created (Newest first)
  • Last updated (Oldest first)
  • Last updated (Newest first)
  • Disputation date (earliest first)
  • Disputation date (latest first)
  • Standard (Relevance)
  • Author A-Ö
  • Author Ö-A
  • Title A-Ö
  • Title Ö-A
  • Publication type A-Ö
  • Publication type Ö-A
  • Issued (Oldest first)
  • Issued (Newest first)
  • Created (Oldest first)
  • Created (Newest first)
  • Last updated (Oldest first)
  • Last updated (Newest first)
  • Disputation date (earliest first)
  • Disputation date (latest first)
Select
The maximal number of hits you can export is 250. When you want to export more records please use the Create feeds function.
  • 1. Asplund, Disa
    et al.
    Westin, Jonas
    Umeå University, Faculty of Social Sciences, Centre for Regional Science (CERUM).
    Modellering av slingor inom sjötransporter2017Report (Refereed)
    Abstract [en]

    The Swedish national freight transport model system Samgods is a freight model that simulates logistics decision at a disaggregated firm-to-firm level. The model calculates total annual transport demand in Sweden for all transport modes based on a deterministic cost minimization approach. The model cannot consolidate commodities of different commodity types in the same vessel, train or truck and can only simulate vessels using direct routes between two ports. This implies that many of the features of sea transport such as utilizing larger vessels and building loops to consolidate goods from different ports is not possible in the current Samgods version. In this paper, we analyze the effect of removing restrictions in sea transportation especially by allowing the ship operators to construct and utilize loops. In the new model, LIFREM (Loops Including FREight Model), the shippers’ choice of sea transport routes is modelled as a mixed integer linear programming optimization problem. In doing so, we make use of a case study on sea transport of forest products from Northern Sweden to Western Europe. The results show that allowing predefined loops decreases total logistic cost by 10% and allowing the shipper to freely select loops decreases the cost by 21%. These results show that modelling of loops is important in order to realistically represent the attractiveness of the sea transport mode. This is also confirmed by the fact that the sea mode share increases by 2–4% in LIFREM when loops are allowed.

  • 2.
    Isacsson, Gunnar
    et al.
    Trafikverket.
    Westin, Jonas
    Umeå University, Faculty of Social Sciences, Centre for Regional Science (CERUM).
    Westin, Lars
    Umeå University, Faculty of Social Sciences, Centre for Regional Science (CERUM).
    Teoretiska utgångspunkter för bostadsbyggande kopplat till åtgärdsplaneringen – inledande reflektioner2017Report (Other academic)
  • 3.
    Jonsson, Daniel R.
    et al.
    Kungliga Tekniska Högskolan.
    Adolphsson, Marcus
    Kungliga Tekniska Högskolan.
    Westin, Jonas
    Umeå University, Faculty of Social Sciences, Centre for Regional Science (CERUM).
    Regionala systemanalyser2015Report (Other academic)
  • 4.
    Kjellberg, Jeanette
    et al.
    Umeå University, Faculty of Social Sciences, Centre for Regional Science (CERUM).
    Westin, Jonas
    Umeå University, Faculty of Social Sciences, Centre for Regional Science (CERUM).
    Westin, Lars
    Umeå University, Faculty of Social Sciences, Centre for Regional Science (CERUM).
    Helo, Petri
    Rymaszewska, Anna
    Solvoll, Gisle
    Sandberg Hanssen, Thor-Erik
    Botnia-Atlanticakorridorens transportomland och utvecklingsförutsättningar: slutrapport från Botnia-Atlanticaprojektet SimLab East-West2014Report (Other academic)
  • 5.
    Proost, Stef
    et al.
    KU Leuven.
    Westin, Jonas
    Umeå University, Faculty of Social Sciences, Centre for Regional Science (CERUM).
    Race to the top in traffic calming2017In: Papers in regional science (Print), ISSN 1056-8190, E-ISSN 1435-5957, Vol. 96, no 2, p. 401-422Article in journal (Refereed)
    Abstract [en]

    We study the competition of two suburbs facing transit traffic flows. The suburbs are substitutes for transit traffic. In the absence of toll measures, the symmetric Nash equilibrium with two local governments leads to a race to the top in traffic calming measures that increases the cost of travel. The Nash equilibrium is compared to two types of centralized decisions: the symmetric solution and the asymmetric solution. The asymmetric solution that concentrates all transit traffic in one suburb is better but can only be realized if the authority over the local roads is transferred to the central authority.

  • 6.
    Proost, Stef
    et al.
    KTH, KU Leuven.
    Westin, Jonas
    Umeå University, Faculty of Social Sciences, Centre for Regional Science (CERUM).
    Race to the Top in Traffic Calming2014Conference paper (Other academic)
    Abstract [en]

    We study the competition of two suburbs that are facing transit traffic flows. We show that in the absence of toll measures, the Nash equilibrium leads to a race to the top in traffic calming, except for the measures that do not affect the generalized cost of traffic. The Nash equilibrium is compared to two types of centralized decisions: the symmetric solution and the asymmetric solution. It is shown how the asymmetric solution that concentrates all transit traffic in one suburb is better but can only be realized if the authority over the local roads is transferred to the central authority.

  • 7.
    Vierth, Inge
    et al.
    VTI, Statens väg- och transportforskningsinstitut.
    Karlsson, Rune
    VTI, Statens väg- och transportforskningsinstitut.
    Westin, Jonas
    Umeå University, Faculty of Social Sciences, Centre for Regional Science (CERUM).
    Validering av sjötransporter i Samgodsmodellen Version 1.12016Report (Refereed)
    Abstract [en]

    The project analyzes how well sea transports are modelled in the Swedish national freight model system Samgods. This first report comprises a short description of Version 1.1 of the model including calibration, a comparison of model results and statistics in 2012 as well as sensitivity analyses to test how the model reacts to different types of interventions. The second report, VTI notat 31-2016 Modeling of loops in maritime transport – Case Study of SCA's RoRo operations in the Baltic Sea, examines how big the problem is that Samgods does not model loops (vessels calling more than two ports during a trip). The existing Samgods model is a deterministic cost-minimizing model. It consists of several partially interacting modules: a) base matrices that describe the demand for 32 commodities, b) the logistics model that contains submodules for the choice of consignment size, consolidation of shipments from different senders, choice of transport chains, treatment of empty transports etc. and c) the rail capacity management tools (RCM) addressing capacity constraints in the Swedish rail network. The calibration of the model focuses on tonne-km and modal split in Sweden as well as different regional distributions of the tonnes transported, but the distribution over vessels types is not taken into account. Our analyses show that the model calculates about four times as many tonnes transported by container vessels than the statistics. We see a need to check if the input data used for the modelling of container transports (vs conventional transports) is realistic. Throughput (loaded/unloaded tonnes goods) was calibrated for 14 coastal sections and twelve aggregated commodities. However, we believe that the throughput per port should be a calibration target. The distribution of the gods on the ports is crucial in analyses of investments in fairways, locks etc. Furthermore, the distribution of the port calls vessel categories and -size classes was not a calibration target. We show that Samgods model overestimates the number of calls to all freight vessels with about 50 percent. The number of container vessel calls is about five times higher as in the Swedish Maritime Administration’s database. The number of roro-vessel calls is about two times as high. The conformity for the other vessels is very good. One explanation for the fact that number of container vessel calls is overestimated is of course that the amount of tonnes transported in containers is overestimated considerably. We show that almost all container vessels are expected to be in the model’s smallest of four size classes (up to 5 300 dead weight tonnes). The results indicate that Samgods is not able to model the use of larger container vessels due to the exploitation of economies of scale (which is very common in reality). The result for ro-ro vessels goes in the same direction but is not that extreme. For other vessels, the results are more consistent with the statistics. We think it is important to distinguish between different vessel types and with different production systems in the modelling. The load factors for loaded vehicles (and empty transports) were not part of the calibration. Today it is not possible to validate loading factors in various vehicles and vessels against statistics. The model calculates higher load factors for road (75–94 percent) and rail (86–97 percent) than for sea transports (0–73percent). Given the existing model only allows for consolidation within the 32 commodities, we tested the aggregation to twelve commodities. The results show that this contributes to a higher share for sea transports and the use of larger vessels size classes. This indicates that a higher degree of 10 VTI notat 30-2016 consolidation is achieved with fewer commodities. The same applies to a hypothetical doubling or tenfold increase in freight transport demand. In the latter two analyses, it becomes obvious that the potential of the rail mode to consolidate more is limited because both trains and rail infrastructure are well utilized in the base. Regarding consolidation, there are parallels between rail and sea and we think it would be interesting to study the similarities and differences in modeling.

  • 8.
    Westin, Jonas
    Umeå University, Faculty of Social Sciences, Centre for Regional Science (CERUM).
    Cooperation and Cross-Border Infrastructure Planning in Northern Europe2015Conference paper (Other academic)
    Abstract [en]

    The purpose of this paper is to analyze prerequisites, opportunities and challenges for cross-border transport infrastructure planning in Northern Europe. We compare the transport planning processes in Finland, Sweden and Norway and analyze how the used transport model systems and CBA-guidelines can handle cross-border transport projects. The paper will address the following research questions:

    • How does the transport planning process work in the three countries? What are the differences and similarities between the countries?
    • Are there any differences between cross-border transport infrastructure planning and traditional national transport planning within each country?
    • Does cross-border transport infrastructure projects put other demands on the planning process compared to national projects?
    • Are existing analytical frameworks, CBA-guidelines and transport models suited to analyze cross-border transport projects in a comparable way as purely national transport projects?

    The analysis is based on a review of the transport planning processes in Finland, Sweden and Norway and a comparative analysis of the analytical frameworks, transport models and cost-benefit guidelines used for decision making in the national planning systems in all three countries. In a case study we compare the outcome of an existing study of a cross-border transport investment analyzed in the National Norwegian freight transport model with the outcome when the same project is analyzed in the corresponding Swedish freight transport model.

    On a general level, the national transport planning systems in the Nordic countries share many similar features. Transport planning in Sweden, Norway and Finland are all based around national transport plans. Since the main focus in the national transport plans in all three countries is to prioritize and appoint national infrastructure projects, this means that the transport planning process is not designed to deal with cross-border transport projects in a comparable way. Cross-border transport planning can also be more complex since it requires coordination between multiple planning processes in different countries with different planning traditions, division of responsibilities, project financing, requirements and decision cycles. Analyses of the distribution of costs and benefits becomes more important for cross-border transport projects when the construction costs are shared between multiple countries. This may require adaptation of existing analytical frameworks and transport models.

    The strong focus on national transport demand in the used transport models makes the model systems poorly adapted to analyze the effect from investments in cross-border transport infrastructures. The case study show both that the national model systems risk to underestimate effects on the transport flows in neighboring countries and that the model results in general are more uncertain in border regions. Differences between transport models, guidelines for CBA, valuations, forecasts, data etc. between different countries also makes it difficult to rank and compare cross-border transport projects in a consistent way. The national focus in the CBA guidelines also means that the benefit from cross-border transport projects may be treated in a different way than strictly national projects.

    The strong national focus in the transport planning systems together with the revealed difficulties to analyze and compare cross-border transport projects in a comparable way as purely national transport projects can create a comparative disadvantage for border regions with a strong dependence on cross-border traffic. The strong national focus may also lead to a sub-optimization of the transport infrastructure from both a national and a European perspective.

  • 9.
    Westin, Jonas
    Umeå University, Faculty of Social Sciences, Centre for Regional Science (CERUM).
    Fördjupade godsflödesanalyser för Trafikverket region Nord och Mitt2016Report (Other academic)
    Abstract [sv]

    Denna rapport är framtagen och finansierad på uppdrag av Trafikverket Region Nord och Region Mitt. Syftet med rapporten har varit är att genomföra en fördjupad analys av godsflöden längs vägar, järnvägar och sjörutter i Trafikverkets region Nord och Mitt så som de beskrivs i Trafikverkets Samgodsmodell. Trafikverkets Samgodsmodell är central för Trafikverkets inriktnings- och åtgärdsplanering, vid skapandet av en lägesbild över godsflöden och godstransportefterfrågan i regionen är det därför viktigt att bygga arbetet utifrån denna modell. I ett tidigare projekt har en lägesbild över godstransportefterfrågan i Trafikverkets regioner Nord och Mitt baserat på data från Trafikverkets Samgodsmodell redovisats. Målsättningen med detta projekt har varit att fördjupa och analysera resultat från detta tidigare arbete.

  • 10.
    Westin, Jonas
    Umeå University, Faculty of Social Sciences, Centre for Regional Science (CERUM).
    Förslag på metoder för fortsatt hantering av regional­ekonomiska analyser i ASEK2015Other (Other academic)
    Abstract [sv]

    Denna promemoria innehåller en diskussion om regionala effekter i samhällsekonomisk kalkyl inom transportområdet och förslag på fortsatt metodutveckling för hantering av regionalekonomiska effekter inom ASEK.

  • 11.
    Westin, Jonas
    Umeå University, Faculty of Social Sciences, Centre for Regional Science (CERUM).
    Förslag på process för fortsatt arbete med regional systemanalys och länstransportplaner i Norrbotten och Västerbotten2015Report (Other (popular science, discussion, etc.))
  • 12.
    Westin, Jonas
    Umeå University, Faculty of Social Sciences, Centre for Regional Science (CERUM).
    Transporter och regional utveckling2015Other (Other (popular science, discussion, etc.))
  • 13.
    Westin, Jonas
    et al.
    Umeå University, Faculty of Social Sciences, Centre for Regional Science (CERUM).
    de Jong, Gerard
    ITS Leeds och Significance.
    Vierth, Inge
    VTI och CTS.
    Krüger, Niclas
    VTI och CTS.
    Karlsson, Rune
    VTI.
    Johansson, Magnus
    CTS och Trafikanalys.
    Baserunning - analyzing the sensitivity and economies of scale of the Swedish national freight model system using stochastic production-consumption-matricesManuscript (preprint) (Other academic)
    Abstract [en]

    The purpose of the paper is to analyze how sensitive the Swedish national freight model system Samgods is to uncertainties in its production-consumption matrices (PC-matrices). This is done by studying how sensitive outputs from one of its key component, the logistics model, are to changes in the PC-matrices. This paper is, to our knowledge, the first attempt to analyze the sensitivity and economies of scale of a national freight transport model using Monte Carlo simulation. The results indicate that the logistics model is able to find new logistics solutions when larger demand volumes are assumed. Freight volumes are calculated to shift to sea transport. If the transport volume increases with one percent, the logistics cost per tonne is on average reduced by about 0.5 percent. Part of the cost reduction comes from increased consolidation of shipments due to larger transport volumes. There is also a positive correlation between total transport demand and the load factor for heavier lorries, trains and larger ships. Without empirical data and further analysis it is difficult to assess the estimated strength of the effect. Furthermore, the analysis indicates that it might be possible to reduce runtimes by removing small transport flows from the PC-matrices without affecting aggregate results too much.

  • 14.
    Westin, Jonas
    et al.
    Umeå University, Faculty of Social Sciences, Centre for Regional Science (CERUM).
    de Jong, Gerard
    Significance.
    Vierth, Inge
    Swedish National Road and Transport Research Institute (VTI).
    Krüger, Niclas
    Swedish National Road and Transport Research Institute (VTI).
    Karlsson, Rune
    Swedish National Road and Transport Research Institute (VTI).
    Johansson, Magnus
    Transport Analysis.
    Baserunning - analyzing the sensitivity and economies of scale of the Swedish national freight model system using stochastic production-consumption-matrices2015Report (Refereed)
    Abstract [en]

    The purpose of the paper is to analyze how sensitive the Swedish national freight model system Samgods is to uncertainties in its production-consumption matrices (PC-matrices). This is done by studying how sensitive outputs from one of its key component, the logistics model, are to changes in the PC-matrices. This paper is, to our knowledge, the first attempt to analyze the sensitivity and economies of scale of a national freight transport model using Monte Carlo simulation. The results indicate that the logistics model is able to find new logistics solutions when larger demand volumes are assumed. Freight volumes are calculated to shift to sea transport. If the transport volume increases with one percent, the logistics cost per tonne is on average reduced by about 0.5 percent. Part of the cost reduction comes from increased consolidation of shipments due to larger transport volumes. There is also a positive correlation between total transport demand and the load factor for heavier lorries, trains and larger ships. Without empirical data and further analysis it is difficult to assess the estimated strength of the effect. Furthermore, the analysis indicates that it might be possible to reduce runtimes by removing small transport flows from the PC-matrices without affecting aggregate results too much.

  • 15.
    Westin, Jonas
    et al.
    Umeå University, Faculty of Social Sciences, Centre for Regional Science (CERUM).
    Forsgren, Andreas
    Umeå kommun.
    Förutsättningar, hinder och utmaningar för gränsöverskridande infrastrukturplanering2015Conference paper (Other (popular science, discussion, etc.))
  • 16.
    Westin, Jonas
    et al.
    Umeå University, Faculty of Social Sciences, Centre for Regional Science (CERUM).
    Forsgren, Andreas
    Infrastructure planning: a challenge for cross-border cooperation2015Conference paper (Other academic)
  • 17.
    Westin, Jonas
    et al.
    Umeå University, Faculty of Social Sciences, Centre for Regional Science (CERUM).
    Forsgren, Andreas
    Umeå University, Faculty of Social Sciences, Centre for Regional Science (CERUM).
    Infrastructure planning: A challenge for cross-border cooperation2014Report (Other academic)
    Abstract [en]

    The paper describes national infrastructure planning in Finland, Sweden and Norway as well as the tools and guidelines which are used for cost-receipts analysis at the national level. Special focus will be directed towards cross-border infrastructure and the extent to which the national planning process permits national and cross-border infrastructure projects to be compared on the same terms and conditions. Given that national and cross-border infrastructure projects cannot be compared on the same terms and conditions with existing evaluation methods, the risk of sub-optimal infrastructure allocations is immediate.

  • 18.
    Westin, Jonas
    et al.
    Umeå University, Faculty of Social Sciences, Centre for Regional Science (CERUM).
    Forsgren, Andreas
    Umeå University, Faculty of Social Sciences, Centre for Regional Science (CERUM).
    Modellering av konkurrenskraft och geografiskt upptagningsområde hos en intermodal godstransportkorridor över Kvarken2014Report (Other academic)
    Abstract [sv]

    Syftet med rapporten är att analysera konkurrenskraft, geografiskt marknadsområde och potential att attrahera långväga öst-västliga transitflöden till en intermodal transportkorridor i Botnia-Atlanticaregionen. Genom att utveckla en simuleringsmodell har effekter på godsflöden, transittrafik och långväga transitflöden längs det öst-västliga stråket analyserats. Centrala moment i processen har varit insamling, sammanställning och analys av befintlig statistik samt modellering och simulering av godsflöden och intermodala transportkostnader i norra Europa. En frågeställning som projektet försökt att besvara är vilken potential en förstärkt godskorridor från Nordland, genom Västerbotten, till Österbotten och vidare ner mot södra Finland, Baltikum och Ryssland har att attrahera långväga transitflöden.Denna rapport har tagits fram inom ramen för projektet SimLab East-West.

  • 19.
    Westin, Jonas
    et al.
    Umeå University, Faculty of Social Sciences, Centre for Regional Science (CERUM). Department of Transport Science, Centre for Transport Studies (CTS), KTH Royal Institute of Technology, Sweden.
    Franklin, Joel P.
    KTH Royal Institute of Technology.
    Proost, Stef
    KU Leuven; KTH Royal Institute of Technology.
    Basck, Pierre
    Laboratoire d’Economie des Transports, CNRS, Université de Lyon, France.
    Raux, Charles
    Laboratoire d’Economie des Transports, CNRS, Université de Lyon.
    Achieving political acceptability for new transport infrastructure in congested urban regions2016In: Transportation Research Part A: Policy and Practice, ISSN 0965-8564, E-ISSN 1879-2375, Vol. 88, p. 286-303Article in journal (Refereed)
    Abstract [en]

    This paper analyzes the efficiency and political acceptability of road pricing and infrastructure policies targeted at relieving urban congestion. It combines a stylized transport model of an urban road network with a model of the political process that incorporates interactions between voters, citizen interest groups and politicians to explore the possibilities to reach political acceptability for efficient transport policies. In a numerical illustration, the paper compares a set of pricing and investment policies in terms of efficiency and acceptability. The illustration shows how conflicting interests can lead to non-efficient policies being chosen.

  • 20.
    Westin, Jonas
    et al.
    Umeå University, Faculty of Social Sciences, Centre for Regional Science (CERUM).
    Svensson, Johan
    Umeå University, Faculty of Social Sciences, Umeå School of Business and Economics (USBE), Statistics.
    Svensson, Ingrid
    Umeå University, Faculty of Social Sciences, Umeå School of Business and Economics (USBE), Statistics.
    Rollspelsövningar för undervisning av matematiska modeller2017In: Abstracts Universitetspedagogiska konferensen 2017: Undervisning i praktiken – föreläsning, flexibelt eller mitt emellan?, Umeå, 2017Conference paper (Other academic)
    Abstract [sv]

    Syftet med denna presentation är att redovisa och diskutera resultat från ett pågående PUNKTUM-projekt med syfte att utveckla och utvärdera rollspel som metod för undervisning i högre matematik och statistik.

  • 21.
    Westin, Jonas
    et al.
    Umeå University, Faculty of Social Sciences, Centre for Regional Science (CERUM).
    Sörensson, Robert
    Umeå University, Faculty of Social Sciences, Centre for Regional Science (CERUM).
    Potential Freight Volumes of the Kvarken Ferry Link: Base Report to the Midway Alignment project2014Report (Other academic)
    Abstract [en]

    The Kvarken Ferry Link is a maritime transport connection between Sweden and Finland. This report is a deliverable from the Centre for Regional Science (CERUM) at Umeå University to the Midway Alignment project. The purpose of the report is to analyse the freight demand for the ferry by estimating the maximum potential freight transport in the catchment area of the ferry. The analysis is based on a model analysis of the maximum potential freight volumes in the catchment area of the ferry across the Kvarken strait using input data from the Swedish national freight modelling system Samgods. The results are combined with a scenario analysis where the effect of different forecasts for the Kvarken ferry is studied. The analysis might serve as an input in a subsequent analysis of the market potential and transport demand for the ferry link between Vaasa in Finland and Umeå in Sweden.

  • 22.
    Westin, Jonas
    et al.
    Umeå University, Faculty of Social Sciences, Centre for Regional Science (CERUM). KTH Royal Institute of Technology, Sweden.
    Vierth, Inge
    Swedish National Road and Transport Research Institute (VTI).
    de Jong, Gerard
    Significance, Institute for Transport Studies, University of Leeds, and CTS, Sweden.
    Karlsson, Rune
    Swedish National Road and Transport Research Institute (VTI).
    Krüger, Niclas A.
    Örebro University.
    Johansson, Magnus
    Transport Analysis.
    Analyzing model uncertainty and economies of scale of the Swedish national freight model to changes in transport demand2016In: European Journal of Transport and Infrastructure Research, ISSN 1567-7133, E-ISSN 1567-7141, Vol. 16, no 4, p. 619-632Article in journal (Refereed)
    Abstract [en]

    The purpose of the paper is to analyze model uncertainty and economies of scale of the Swedish national freight transport model system Samgods to changes in its zone-to-zone base matrices. Even though economies of scale is important for freight transport, few studies analyze model uncertainty and economies of scale at a national level. Compared to many large scale networkbased freight models working on aggregated transport flows, an important feature in Samgods is that it simulates logistics behavior at a disaggregated firm level. The paper studies effects on total tonne- and vehicle-kilometre, modal split, consolidation and logistics costs when the base matrices are scaled up and down and estimates economies of scale for Swedish freight transports. The results indicate that the logistics model can find new logistics solutions for larger demand volumes, mainly by shifting freight to sea transport. If transport volume increases with one percent, average logistics cost per tonne is reduced by around 0.5 percent. Part of the cost reduction comes from increased consolidation of shipments due to larger transport volumes. The results derived in the paper can serve as a reference for empirical validation and comparisons with other large scale freight models. The paper is a first contribution that tries to fill the knowledge gap on the impact of base matrices on transport model outcomes, such as economies of scale, in the context of a full-fledged real-world freight transport model.

  • 23.
    Westin, Jonas
    et al.
    Umeå University, Faculty of Social Sciences, Centre for Regional Science (CERUM).
    Westin, Lars
    Umeå University, Faculty of Social Sciences, Centre for Regional Science (CERUM).
    Olsson, Olof
    Umeå University, Faculty of Social Sciences, Department of Geography and Economic History, Economic and social geography.
    Norin, Henrik
    Umeå University, Faculty of Social Sciences, Centre for Regional Science (CERUM).
    Godsflödesanalyser för Trafikverket region Nord och Mitt2016Report (Other academic)
    Abstract [sv]

    Denna rapport är framtagen och finansierad på uppdrag av Trafikverket Region Nord och Region Mitt. Syftet med rapporten har varit är att sammanställa och redovisa godsflöden längs vägar, järnvägar och sjörutter i Trafikverkets region Nord och Mitt så som de beskrivs i Trafikverkets Samgodsmodell. Trafikverkets Samgodsmodell är central för Trafikverkets inriktnings- och åtgärdsplanering, vid skapandet av en lägesbild över godsflöden och godstransportefterfrågan i regionen är det därför viktigt att bygga arbetet utifrån denna modell.

1 - 23 of 23
CiteExportLink to result list
Permanent link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf