Structural design of a hierarchical urban transit network integrating modal choice and environmental impacts

Fabien Li and Sheng Badia
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Fabien Li: LVMT - Laboratoire Ville, Mobilité, Transport - IFSTTAR - Institut Français des Sciences et Technologies des Transports, de l'Aménagement et des Réseaux - UPEM - Université Paris-Est Marne-la-Vallée - ENPC - École nationale des ponts et chaussées
Sheng Badia: LVMT - Laboratoire Ville, Mobilité, Transport - IFSTTAR - Institut Français des Sciences et Technologies des Transports, de l'Aménagement et des Réseaux - UPEM - Université Paris-Est Marne-la-Vallée - ENPC - École nationale des ponts et chaussées

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Abstract: 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.

Keywords: MULTIMODAL TRANSPORTATION; TRANSIT NETWORK; DESIGN MODEL; SOCIAL WELFARE; ENVIRONMENTAL IMPACTS (search for similar items in EconPapers)
Date: 2018-09-17
New Economics Papers: this item is included in nep-dcm, nep-env, nep-tre and nep-ure
Note: View the original document on HAL open archive server: https://hal.science/hal-02010003v1
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Published in EWGT 2018, Euroworking Group on Transportation, Sep 2018, Braunschweig, Germany. pp.99-106, ⟨10.1016/j.trpro.2018.12.171⟩

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Persistent link: https://EconPapers.repec.org/RePEc:hal:journl:hal-02010003

DOI: 10.1016/j.trpro.2018.12.171

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