STUDY OF THE EFFECT ON ROAD ACCIDENTS OF REDUCING THE MAXIMUM PERMISSIBLE VEHICLE LENGTH FROM 24 TO 18 METRES

STUDIE AV EFFEKTEN PAA TRAFIKOLYCKOR AV EN MINSKNING AV HOEGSTA TILLAATNA FORDONSLAENGD FRAAN 24 TILL 18 METER

In order to determine the effect on traffic safety of a reduction of the maximum permissible length of vehicle combinations from 24 to 18 metres, an accident analysis has been carried out by the secretariat of the commission on certain aspects of road safety. The dependence between accident risk and length of vehicle combination as well as accident risk and type of combination has been studied. The difference in accident risk has been calculated between the vehicle combinations which will be exchanged after a length reduction and the vehicle combinations which will substitute them. A "decision model" has been constructed from which it is possible to determine whether a reduction of the maximum length has an advantageous effect on traffic safety. However, in order to use the "decision model", knowledge must be gained about the proportion of tractors with semitrailers as well as trucks with trailers among the future vehicle combinations, the effect of technical improvements on tractors with semitrailers and the amount of cargo transports which can be transferred to railroad. Furthermore, the effect on accident severity of a reduction of the maximum length has been studied. /TRRL/

  • Availability:
  • Corporate Authors:

    Statens Trafiksackerhetsverk

    Fack S-171
    Solna,   Sweden 
  • Publication Date: 1977

Language

  • Swedish

Media Info

  • Features: Figures; Photos; References; Tables;
  • Pagination: 120 p.
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00189632
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Files: ITRD, TRIS
  • Created Date: May 11 1979 12:00AM