Travel time measurement by vehicle sequence matching method - examination of evaluation method focused shape of vehicle -

We studied a method of identifying vehicles using vehicle height data obtained from ultrasonic vehicle detectors. We previously proposed vehicle matching based on vehicle sequences (two or more vehicles) instead of one-to-one matching, because many similar vehicles exist on the road. We developed a genetic algorithm (GA) method based on traffic characteristic, and we describe an improved method of evaluating vehicle sequences using typical values of shape of vehicle, that is to say, front elevation degree and rear elevation degree. We report that the accuracy of vehicle identification was improved according to experimental results.