同济大学学报（自然科学版）2011，Vol.39Issue(7)：1019-1025,7.DOI:10.3969/j.issn.0253-374x.2011.07.014
基于统计分析的交通检测设备性能诊断方法
A Novel Approach of Performance Diagnostics for Traffic Monitoring Equipment Based on Statistical Analysis
摘要
Abstract
Identifying the "health problem" of traffic monitoring equipments is important to long-term performance of intelligent transportation system (ITS) application system. Based on statistical distribution analysis of plentiful traffic data archives, a quantitative method to seek the potential problem of traffic observations is proposed. Employing free-flow speed, a steady parameter of traffic flow, as a main indicator, parameters estimation, hypothesis test and confidence interval analysis are jointly used to determine the health condition of traffic detectors. The methodology is demonstrated through application to the historical and real-time data in the Advanced Traffic Management System of Shanghai urban expressway system, with validation by floating car measurement.关键词
智能交通/数据检测/性能诊断/统计分析Key words
intelligent transportation system (ITS)/ data monitoring/ performance diagnostic/ statistical analysis分类
交通工程引用本文复制引用
杜豫川,周子益,李江,孙立军..基于统计分析的交通检测设备性能诊断方法[J].同济大学学报（自然科学版）,2011,39(7):1019-1025,7.基金项目
国家自然科学基金(60804048) （60804048）
教育部新世纪优秀人才支持计划(NCET-08-0407) （NCET-08-0407）
