ABSTRACT

Statistical data of traveling vehicle should include the information about total weight, number of axles, axle weight, axle distance, vehicle distance, vehicle velocity and traffic pattern, etc. In order to obtain the information, static measurement method, in which the traveling vehicle should stop to be weighed, could be used. But the traffic is severely interrupted in crowded and speedy highways and such information as vehicle velocity, vehicle distance and traffic pattern cannot be obtained by static method. Bridge weigh-in-motion (BWIM) system can overcome the shortcomings of the static method by collecting data while vehicles are in motion.