VT2100视频检测设备在交通调查中的精度分析

Precision Analysis of Video Detecting Equipment in Highway Traffic Survey

上世纪90年代开始,交通调查步入信息化、智能化进程,2000年后我国相继引入了线圈、超声波、视频等车辆检测技术。随着各类检测技术在交通信息自动化采集工程中的推广应用,各地在选择哪种适合类型的检测设备时仍感茫然,初期阶段主要根据厂商宣传和部门推荐来选型,究竟适应性如何尚无统一定论。现通过多年来在交通调查管理中收集的数据资料,针对VT2100视频检测设备在交通量信息采集过程中的检测精度、分车型精度、设备稳定可靠性等方面,进行了数据分析,对设备在运行过程中的性能发挥和实际所能达到的精度详细比较,并对设备性能发挥及其影响因素做一些探讨。

The traffic survey has entered the intelligent time since the 1990＇s.Our country introduced the induc-tance coil,ultrasound and video detecting techniques to improve the traffic investigation after 2000.Althoughmany kinds of testing technologies have been put into use in traffic information automation engineering,but thereis no unified standard for what equipment is suitable according to different situations in each region.This paper an-alyzes the accuracy and reliability of the video detection equipment called VT2100 in the process of traffic infor-mation collection.Conclusions about the level of property and reliability of this equipment are made after analyz-ing the affecting factors.