Title: A Novel Approach of Performance Diagnostics for Traffic Monitoring Equipment Based on Statistical Analysis
Abstract: Identifying the 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.
Publication Year: 2011
Publication Date: 2011-01-01
Language: en
Type: article
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