Development of the Calibration System for the Portable Axle Load Weighers

摘要

As the number of cars increases, the damage of roads due to the overload vehicles is increasing. Many countries havepaid much cost for road maintenance and repaving every year. So each Ministry of Transportation has regulated overload vehicles strictly using several types of axle load weighers in freeway tollgates and on the road of expressways. Because the portable axle load weighers are used in regulation, if people don't trust their accuracy, many troubles between public servants and drivers of overload vehicles occur in regulation process. Therefore reliability of the portable axle load weighers is very important. In order to reduce troubles in overload regulations, it is necessary to calibrate the portable axle load weighers periodically. But international standards of the calibration for the portable axle load weighers are not made yet. In this study, we suggested the international level of calibration for the portable axle load weighers.