NEW INVESTIGATIONS ABOUT THE RELATIONSHIPS BETWEEN CONGENITAL COLOUR VISION DEFECTS AND ROAD TRAFFIC SECURITY

New extensive experiments demonstrated that: (a) protan observers are more deficient than deutan ones with regard to perception distances of some traffic panels, of vehicle red stop lights, of vehicle red rear-position lights and of white, yellow and red reflectors; contrarily, deutan observers are more deficient than protan ones for the distinction of differently coloured traffic lights and vehicle rear lights; (b) protan and deutan drivers are not responsible for more traffic accidents than drivers with normal colour vision; (C) this apparent contradiction is due to psychological compensation mechanisms. The practical conclusions are: (a) that persons with defective colour vision need not to be excluded from private road traffic; (b) that it is nevertheless useful that they should be aware of their handicap; (C) that the red traffic signal needs to be larger than the other ones; and (D) that the stop and red position lights of vehicles must be sufficiently intense and that the filters transmitting only extreme red should be avoided in them. (TRRL)

  • Corporate Authors:

    Nederlandsche Vereniging Van Artsen-Automobilisten

    P.O. Box 64
    Utrecht,   Netherlands 
  • Authors:
    • Verriest, G
    • NEUBAUER, O
    • Marre, M
    • Uvijls, A
  • Publication Date: 1980-3-15

Media Info

  • Features: Figures; References;
  • Pagination: p. 498-504
  • Serial:
    • Arts en Auto
    • Volume: 46
    • Issue Number: 6
    • Publisher: Nederlandsche Vereniging Van Artsen-Automobilisten

Subject/Index Terms

Filing Info

  • Accession Number: 00324811
  • Record Type: Publication
  • Source Agency: Institute for Road Safety Research, SWOV
  • Files: ITRD, TRIS
  • Created Date: Aug 15 1981 12:00AM