On the numbered and major Provincial highway system in British Columbia, about 14 percent of traffic accidents occur at signalized intersections. The Highway Safety Branch of the Ministry of Transportation and Highways, completed a research project regarding drivers and signal designs in 1993. The purpose of the project was to find out what problems drivers, particularly the old age drivers and drivers with colour vision deficiencies, has with recognizing traffic signal light colours, and to suggest what might be done to enhance safety at signalized intersections. The research results indicate that some signal design elements were effective in reducing the reaction times of drivers in recognition of signal in recognition of signal colour, especially those of the old age and colour vision deficient drivers. (A)
Abstract