BEHAVIOURAL EFFECTS OF SLIPPERY ROAD VARIABLE MESSAGE SIGNS IN TURKU ROAD DISTRICT IN WINTER 1993-1994

MUUTTUVIEN KELIVAROITUSMERKKIEN VAIKUTUKSET LIIKENNEKAYTTAYTYMISEEN TURUN TIEPIIRISSA TALVELLA 1993-1994

The purpose of this study was to investigate how a slippery road VMS (Variable Message Sign) and a headway recommendation VMS affect driver behaviour. The comprehension of these new signs and their functions was also studied. The slippery road VMS included a slippery road pictogram with a snow flake symbol beneath it and a headway recommendation. The recommendation was assigned to each vehicle and its value depended on vehicle type, speed, and the prevailing road surface condition class. Data on behaviour was collected with automatic counters based on loop detectors located well before the VMS, ca. 500 m after them, and further after the VMS, in both driving directions. The other direction was used as control data. Data was collected before and after the implementation of the VMS in different road surface conditions. The signs were in operation in the spring for ca. 1.5 months before the end of winter road conditions.

  • Availability:
  • Corporate Authors:

    TIELAITOS, FINNISH NATIONAL ROAD ADMINISTRATION

    OPASTINSILTA 12
    HELSINKI,   Finland  FIN-00520
  • Authors:
    • RAMA, P
    • KULMALA, R
    • HEINONEN, M
  • Publication Date: 1995

Language

  • Finnish

Media Info

  • Features: References;
  • Pagination: 39P+27A p.
  • Serial:
    • TIELAITOKSEN SELVITYKSIA
    • Volume: 36
    • Issue Number: TIEL 3200313
    • Publisher: TIELAITOS (FINNISH NATIONAL ROAD ADMINISTRATION)
    • ISSN: 0788-3722

Subject/Index Terms

Filing Info

  • Accession Number: 00722264
  • Record Type: Publication
  • Source Agency: VTT Technical Research Centre of Finland
  • ISBN: 951-726-082-2
  • Files: ITRD
  • Created Date: Jun 28 1996 12:00AM