Improving road safety with the average speed information system

Cofiroute has designed, developed and installed early July 2003, on a section of about twelve kilometres on the A10 motorway, a system which informs the driver that his average speed has exceeded the legal speed limit. The aim is to make the driver aware of his excessive speed, without any enforcement, in order to encourage smooth and safe driving. The vehicles are identified with automatic licence plate number recognition in two locations. Knowing the instant of both plate readings and the distance between the two locations, the system is able to compute the average speed of the vehicle on this section. In case of excessive speed, the plate number of the concerned vehicle and a safety message are displayed alternately on a small roadside Variable Message Sign.


  • English

Media Info

  • Pagination: 6p
  • Monograph Title: Moving towards an integrated Europe: intelligent transport systems and services: congress and exhibition, 24-26 May 2004, Budapest, Hungary

Subject/Index Terms

Filing Info

  • Accession Number: 01390768
  • Record Type: Publication
  • Source Agency: ARRB
  • Files: ATRI
  • Created Date: Aug 23 2012 5:02AM