Advanced Search
MyIDEAS: Login

Relationships Among Urban Freeway Accidents, Traffic Flow, Weather and Lighting Conditions

Contents:

Author Info

  • Golob, Thomas F.
  • Recker, Wilfred W.
Registered author(s):

    Abstract

    Linear and nonlinear multivariate statistical analyses are applied to determine how the types of accidents that occur on heavily used freeways in Southern California are related to both the flow of traffic and weather and ambient lighting conditions. Traffic flow is measured in terms of time series of 30-second observations from inductive loop detectors in the vicinity of the accident prior to the time of its occurrence. Results indicate that the type of collision is strongly related to median traffic speed and to temporal variations in speed in the left and interior lanes. Hit-object collisions and collisions involving multiple vehicles that are associated with lane -change maneuvers are more likely to occur on wet roads, while rear-end collisions are more likely to occur on dry roads during daylight. Controlling for weather and lighting conditions, there is evidence that accident severity is influenced more by volume than by speed.

    Download Info

    If you experience problems downloading a file, check if you have the proper application to view it first. In case of further problems read the IDEAS help page. Note that these files are not on the IDEAS site. Please be patient as the files may be large.
    File URL: http://www.escholarship.org/uc/item/2fh4x5hp.pdf;origin=repeccitec
    Download Restriction: no

    Bibliographic Info

    Paper provided by Institute of Transportation Studies, UC Berkeley in its series Institute of Transportation Studies, Research Reports, Working Papers, Proceedings with number qt2fh4x5hp.

    as in new window
    Length:
    Date of creation: 01 Dec 2001
    Date of revision:
    Handle: RePEc:cdl:itsrrp:qt2fh4x5hp

    Contact details of provider:
    Postal: 109 McLaughlin Hall, Mail Code 1720, Berkeley, CA 94720-1720
    Phone: 510-642-3585
    Fax: 510-643-3955
    Email:
    Web page: http://www.escholarship.org/repec/its/
    More information through EDIRC

    Related research

    Keywords: Traffic safety; Traffic flow; Loop detectors; Nonlinear multivariate analysis; Canonical correlation;

    References

    References listed on IDEAS
    Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
    as in new window
    1. Andrew Dickerson & John Peirson & Roger Vickerman, 1998. "Road Accidents and Traffic Flows: An Econometric Investigation," Studies in Economics 9809, Department of Economics, University of Kent.
    2. Vickrey, William S, 1969. "Congestion Theory and Transport Investment," American Economic Review, American Economic Association, vol. 59(2), pages 251-60, May.
    3. Cajo Braak, 1990. "Interpreting canonical correlation analysis through biplots of structure correlations and weights," Psychometrika, Springer, vol. 55(3), pages 519-531, September.
    4. Jones-Lee, M W, 1990. "The Value of Transport Safety," Oxford Review of Economic Policy, Oxford University Press, vol. 6(2), pages 39-60, Summer.
    Full references (including those not matched with items on IDEAS)

    Citations

    Lists

    This item is not listed on Wikipedia, on a reading list or among the top items on IDEAS.

    Statistics

    Access and download statistics

    Corrections

    When requesting a correction, please mention this item's handle: RePEc:cdl:itsrrp:qt2fh4x5hp. 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: (Lisa Schiff).

    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 references are entirely missing, you can add them using this form.

    If the full references list an item that is present in RePEc, but the system did not link 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 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.