IDEAS home Printed from https://ideas.repec.org/p/nwu/cmsems/976.html
   My bibliography  Save this paper

Properties of Dynamic Traffic Equilibrium Involving Bottlenecks

Author

Listed:
  • Richard Arnott

Abstract

Braess and others have shown that creating a new link in a congested network, or adding capacity to an existing link, can raise total travel costs if drivers switch routes. We show that a paradox can also result when routes are fixed but users choose when to travel. As is true of the Braess paradox, the paradox here arises when the inefficiency due to underpricing of congestion increases by more than the direct benefit of the new capacity. For a corridor with two groups of drivers, we show that expanding capacity of an upstream bottleneck raises travel costs when the reduction in congestion upstream is more than offset by increased congestion downstream. Metering can thus improve efficiency. Optimal upstream capacity is equal to or smaller than downstream capacity for the user equilibrium. Total construction costs equal total variable travel costs when capacities are optimal and construction costs are independent of scale.

Suggested Citation

  • Richard Arnott, 1991. "Properties of Dynamic Traffic Equilibrium Involving Bottlenecks," Discussion Papers 976, Northwestern University, Center for Mathematical Studies in Economics and Management Science.
  • Handle: RePEc:nwu:cmsems:976
    as

    Download full text from publisher

    File URL: http://www.kellogg.northwestern.edu/research/math/papers/976.pdf
    File Function: main text
    Download Restriction: no

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:nwu:cmsems:976. See general information about how to correct material in RePEc.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (Fran Walker). General contact details of provider: http://edirc.repec.org/data/cmnwuus.html .

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service hosted by the Research Division of the Federal Reserve Bank of St. Louis . RePEc uses bibliographic data supplied by the respective publishers.