THE EFFECTIVENESS OF SOME TRAFFIC SURVEILLANCE METHODS

TRAFIKOEVERVAKNING OCH REGELEFTERLEVNAD 1

The purpose of the project described in this report was to study how drivers' observance of speed limits is influenced by different traffic surveillance methods. The hypothesis that was tested was, that a driver who has observed some traffic surveillance activity along a particular road, will remember that surveillance next time he drives along the same road (the memory effect) and adjust his speed accordingly. The experiments were of the before and after type, and were conducted on roads with 90 km/h speed limits. The results were analysed in two different ways; the behaviour of the different populations was studied, and the way in which the memory effect diminishes with time and the number of traffic surveillance activities the driver has encountered. Some results are as follows: the memory effect is statistically significant for at least: 10 days for traffic surveillance by radar, 17 days for helicopter, and 10 days for marked patrol cars. /TRRL/

  • Availability:
  • Corporate Authors:

    Transportforskningsdelegationen

    Sveavagen 166, 14tr
    S-113 46 Stockholm,   Sweden 
  • Publication Date: 1978

Language

  • Swedish

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00195474
  • Record Type: Publication
  • Source Agency: Swedish National Road and Transport Research Institute (VTI)
  • Report/Paper Numbers: TFD 1978:8 Monograph
  • Files: ITRD, TRIS
  • Created Date: Sep 15 1979 12:00AM