Due to the complexity of the future situation of driver, vehicle and road - particularly taking into account psycho-physiological-capacity of elderly drivers - road equipment serving optical guidance takes on a decisive part. Increasing mobility of our society and the high mileage driven at night require that necessary information is ensured even under unfavourable conditions such as darkness, wet surface and dusk / dawn. Additional maintenance requirements in order to fulfill the information tasks in road traffic are an urgent demand in order to maintain or disirably improve safety on our roads. Quality rather than quantity is the request regarding traffic signs and traffic equipment. In order to achieve this it is not only necessary to thin out the forest of signs, but to also systematically check the safety quality of traffic signs in the dark in conjuction with an effective strategic for maintaining and replacing all signs and equipment. (A)
Abstract