The research on method of performance testing and verification for traffic loop-based speed meterGao Furong, Fang QiangGuangdong Institute of MetrologyAbstract:The loop-based speed meter is the important equipment for traffic safety. In this paper, the standards, regulations and statutes about the product are enumerated. And some disadvantages judgment about the product is reached after analysis of maintenance experiment. Then the advice about the quality control, supervising, maintenance and verification for improving the performance of the loop-based speed meter is given.[著者文摘]