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Structural design of a hierarchical urban transit network integrating modal choice and environmental impacts
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering.
2019 (English)In: 21st EURO Working Group on Transportation Meeting, EWGT 2018, 17th – 19th September 2018, Braunschweig, Germany, Elsevier, 2019, Vol. 37, p. 99-106Conference paper, Published paper (Refereed)
Abstract [en]

The paper develops a structural model and a design methodology for transit system planning in an urban area. Transit "components" are modelled by subarea and by sub-mode in terms of line length, station spacing, and fleet size, in order to determine both quality of service and production costs. Roadway networks are modeled with a Macroscopic Fundamental Diagram that relates speed to network capacity and vehicle demand. Local and global environmental impacts are considered. Travel demand includes both mode-dependent users and mode-choosers able to adopt the mode that offers higher utility. The design methodology involves a mathematical program of welfare optimization with respect to transit factors and fares. Two definitions of welfare are given, one that takes into account only demand surplus and supply profit, the other including environmental impacts. An example of application to Greater Paris shows that there is room for system optimization under current subsidy conditions, and that the explicit inclusion of environmental impacts brings about a significant shift in the "optimal" policy package.

Place, publisher, year, edition, pages
Elsevier, 2019. Vol. 37, p. 99-106
Series
Transportation Research Procedia, ISSN 2352-1457 ; 37
Keywords [en]
design model, environmental impacts, multimodal transportation, social welfare, transit network
National Category
Transport Systems and Logistics
Identifiers
URN: urn:nbn:se:kth:diva-251915DOI: 10.1016/j.trpro.2018.12.171Scopus ID: 2-s2.0-85062239886OAI: oai:DiVA.org:kth-251915DiVA, id: diva2:1317694
Conference
21st EURO Working Group on Transportation Meeting, EWGT 2018, 17 September 2018 through 19 September 2018
Note

QC 20190523

Available from: 2019-05-23 Created: 2019-05-23 Last updated: 2019-05-23Bibliographically approved

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Badia, Hugo

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CiteExportLink to record
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Cite
Citation style
  • apa
  • harvard1
  • 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