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Traffic Operations Analysis Chromatogram Based on ETC System in Wuhan
Author(s): 
Pages: 81-85
Year: Issue:  1
Journal: Urban Transport of China

Keyword:  traffic engineeringETC flow analysistraffic operations analysis chromatogramflowspeedcapacityWuhan City;
Abstract: In order to monitor real-time traffic operation of crossing river tunnels in Wuhan, this paper stud-ied and developed the ETC flow analysis subsystem. Based on speed-flow diagram along with the floating car and ETC data, the paper analyzes traffic flow and speed indicators and proposes the corresponding cate-gorization criteria. To avoid errors in traffic operation identification that solely depends on the flow indica-tor, the paper develops a traffic operations analysis chromatogram. Analysis results show that the chromato-gram provides technical support on real-time road operation monitoring, road traffic incident and conges-tion detection, and quantitative analysis of traffic capacity and free flow speeds.
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