IDEAS home Printed from https://ideas.repec.org/p/cdl/itsrrp/qt2cw5v2hx.html
   My bibliography  Save this paper

Safety and Efficiency Tradeoff Analysis for Automated Highway System: Part 3: Longitudinal Separation on AHS: A Trade-off Between Collision Probability/Severity and Capacity

Author

Listed:
  • Tsao, H.-S. Jacob
  • Hall, Randolph W.

Abstract

This report develops a probabilistic model for analyzing longitudinal collision/safety between an abruptly decelerating vehicle and its immediate follower on an Automated Highway System. The input parameters are the distance between the two vehicles, their common speed prior to the failure, the reaction delay of the following vehicle and a bivariate distribution for the two deceleration rates. The output includes the probability of a collision and the probability distribution of the relative speed at collision time. These safety consequences can be used to balance the desire to increase AHS capacity with the safety requirements. We use this model to compare the safety consequences associated with the platooning and "free-agent" longitudinal-separation rules. We also demonstrate that the free-agent rule implemented with a potential technology of fast and accurate emergency deceleration, under some reasonable conditions, can avoid collisions while offering a high freeway capacity previously thought possible only under the platooning rule. This model has many other applications.

Suggested Citation

  • Tsao, H.-S. Jacob & Hall, Randolph W., 1997. "Safety and Efficiency Tradeoff Analysis for Automated Highway System: Part 3: Longitudinal Separation on AHS: A Trade-off Between Collision Probability/Severity and Capacity," Institute of Transportation Studies, Research Reports, Working Papers, Proceedings qt2cw5v2hx, Institute of Transportation Studies, UC Berkeley.
  • Handle: RePEc:cdl:itsrrp:qt2cw5v2hx
    as

    Download full text from publisher

    File URL: https://www.escholarship.org/uc/item/2cw5v2hx.pdf;origin=repeccitec
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. Hitchcock, Anthony, 1991. "A First Example Specification Of An Automated Freeway," Institute of Transportation Studies, Research Reports, Working Papers, Proceedings qt4t0036xb, Institute of Transportation Studies, UC Berkeley.
    Full references (including those not matched with items on IDEAS)

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Tsao, H. S. Jacob & Hall, Randolph W., 1993. "A Probabilistic Model And A Software Tool For AVCS Longitudinal Collision/safety Analysis," Institute of Transportation Studies, Research Reports, Working Papers, Proceedings qt8d1024bw, Institute of Transportation Studies, UC Berkeley.
    2. Hitchcock, Anthony, 1993. "Message Volumes For Two Examples Of Automated Freeway," Institute of Transportation Studies, Research Reports, Working Papers, Proceedings qt6068w25r, Institute of Transportation Studies, UC Berkeley.
    3. Hitchcock, Anthony, 1992. "Fault Tree Analysis Of An Automated Freeway With Vehicle-borne Intelligence," Institute of Transportation Studies, Research Reports, Working Papers, Proceedings qt10n8j8wv, Institute of Transportation Studies, UC Berkeley.
    4. Hitchcock, Anthony, 1991. "Fault Tree Analysis Of A First Example Automated Freeway," Institute of Transportation Studies, Research Reports, Working Papers, Proceedings qt9x57z7jj, Institute of Transportation Studies, UC Berkeley.

    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:cdl:itsrrp:qt2cw5v2hx. See general information about how to correct material in RePEc.

    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.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with 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.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Lisa Schiff (email available below). General contact details of provider: https://edirc.repec.org/data/itucbus.html .

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

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.