New investigations concerning the relationships between congenital colour vision defects and road traffic security
✍ Scribed by Guy Verriest; Oskar Neubauer; Marion Marre; Andre Uvijls
- Publisher
- Springer Netherlands
- Year
- 1980
- Tongue
- English
- Weight
- 862 KB
- Volume
- 2
- Category
- Article
- ISSN
- 0165-5701
No coin nor oath required. For personal study only.
✦ Synopsis
New extentive 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 nevertheless 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 non professional road traffic; (b) that it is nevertheless useful that they should be aware of their handicap; (c) that the red traffic signal has 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 pure red should be avoided in them. 9 ~,,r" " : . ! .