Impact Assessment of Speed Limit Information Displayed on VMS During Heavy Air Pollution Episodes

During heavy air pollution episodes (alert level) on the Lyon urban area, The CORALY Traffic Control Center implements dynamic speed limit reduction measures on the urban expressways network. In this purpose, it takes advantage of all available variable message signs (VMS) to inform drivers that the speed limit is reduced of 20km/h. This study aimed to assess the impact of information displayed on VMS, in order to statistically establish if there is a significant reduction of speed, and to quantify its amplitude. The methodology is succinctly described, with a three process. Several results of this statistical study are exposed and discussed. These results clearly highlight an adaptation of drivers’ behavior to the message displayed on VMS during heavy air pollution peaks.

  • Supplemental Notes:
    • Abstract reprinted with permission from Intelligent Transportation Society of America.
  • Corporate Authors:

    ITS America

    1100 17th Street, NW, 12th Floor
    Washington, DC  United States  20036
  • Authors:
    • Reclus, Fabrice
    • Hugot, Myriam
  • Conference:
  • Publication Date: 2012


  • English

Media Info

  • Media Type: Digital/other
  • Features: CD-ROM; Maps; References; Tables;
  • Pagination: 11p
  • Monograph Title: 19th ITS World Congress, Vienna, Austria, 22 to 26 October 2012

Subject/Index Terms

Filing Info

  • Accession Number: 01494752
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Sep 27 2013 1:08PM