Study of Traffic Performance and Safety Impacts of the Stockholm Motorway Control System (MCS)

Dynamic Motorway Traffic Management and Control has been developed and implemented worldwide with the aim of increasing efficiency, reliability, safety and reducing environmental impacts without necessitating major physical changes in the road infrastructure. The impacts of these systems are difficult to observe and evaluate. In this paper a study of the impacts of the recommended variable speed limits (VSL) on individual traffic characteristics is proposed on the basis of different statistical tests on data of before and after application of the VSL on E4 motorway in Stockholm. VSL contribute to more even traffic flow distribution between lanes. Better speed distribution between vehicles and a sharp decrease of speed variance in all lanes. Time headway equal and less than 1 reduced by 43% and frequency of lane changing reduced by 50%.


  • English

Media Info

  • Media Type: CD-ROM
  • Features: Figures; Photos; References; Tables;
  • Pagination: 12p
  • Monograph Title: ITS Connections: Saving Time. Saving Lives

Subject/Index Terms

Filing Info

  • Accession Number: 01146688
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Dec 6 2009 5:57PM