In many towns one can see that in the late evening and during the night a number of traffic lights give only a flashing orange signal. The reason is the low number of passing cars at those times. In Eindhoven this situation also existed. However, based on an analysis of night accidents it was decided to start an experiment on the continuous functioning of traffic light installations, situated in the inner city cordon. One year after this measure, an evaluation was carried out. A reduction of about 75% of accidents at night had taken place. Apparently, the measure was right and should be taken for all traffic lights in the town. However, the intersections involved were in a specific part of the town, so there was some doubt as to whether one could generalize the results. After some discussion it was decided to apply the measure to all traffic lights in Eindhoven, again as an experiment. The evaluation was to be carried out as soon as possible. This paper gives a description of the evaluation method used.(a) for the covering abstract of the conference see IRRD abstract no 264967.
Abstract