IMPLEMENTATION OF VARIABLE SPEED LIMITS ON MAIN HIGHWAYS IN FINLAND

In recent years all road regions in Finland have started to use variable speed limits (VSL) with different control strategies. The aim of this study was to estimate the impacts of various control strategies and to develop guidelines for planning and implementing VSL in Finland. The first roads with VSL and candidates for such systems were identified, studied and then classified into seven groups. Based on the objectives of using VSL two control guidelines, 1) for road weather and light conditions, and 2) for traffic flow and exceptional incidents, were described. Expected impacts of the recommended VSL for all groups of roads were estimated. Roads selected into the study were ranked and test sites for demonstration projects selected. It was estimated that the implementation of VSL to VSL priority roads (approx. 1000 km) would cost around FIM 270 million. The running costs including maintenance, electricity and communications were estimated to be FIM 15 million. For the covering abstract see IRRD E102946.

Language

  • English

Subject/Index Terms

Filing Info

  • Accession Number: 00781080
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • ISBN: 89-950073-2-X
  • Files: ITRD
  • Created Date: Jan 7 2000 12:00AM