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:
  • 19th ITS World Congress
  • Location: Vienna , Austria
  • Date: 2012-10-22 to 2012-10-26
• Publication Date: 2012

Language

• 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

• TRT Terms: Air quality management; Behavior; Drivers; Environmental impacts; Speed limits; Traffic control; Variable message signs
• Geographic Terms: Lyon (France)
• Subject Areas: Environment; Highways; Operations and Traffic Management; I73: Traffic Control;

Filing Info

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