可变信息标志检测常见问题分析

可变信息标志,广泛应用于高速公路和城市交通监控系统,是现代化交通系统中重要的信息发布设备,对疏导交通、促进行车安全起着重要作用,故其质量问题至关重要。为了控制可变信息标志产品质量,中华人民共和国交通行业标准JT/T431-2000做了较为详细而严格的规定。通过可变信息标志检测工作中常见问题的总结和分析,指出了如发光二极管发光强度、色度性能、电气安全性能、环境适应性能等方面存在的常见问题,并就这些问题逐一进行了探讨,针对影响可变信息标志质量的主要因素提出加强可变信息标志质量控制的方法,供生产厂家、建设部门、管理单位参考。

Analysis of Common Problems in Dynamic Message Signs Detection

Dynamic message signs,which are widely used in highway and urban traffic control systems,are important information dis- semination equipments in the modem traffic systems,are playing an important role for smooth flow of traffic and traffic safety.Therefore, their quality is crucial.In order to control the quality of dynamic message signs,more detailed and stringent requirements are specified in the standard JT/T431-2000.Common problems of dynamic message signs detection are summarized and discussed,such as the LED lu- minous intensity,color performance,electrical safety,adaptation to the environment,and so on.Some methods to strengthen message signs quality control are put forward,which is referential to manufacturers,construction sectors and management.