英文标题
Traffic Congestion Identification Method for Urban Expressway
英文摘要
In order to make up inadequate research on traffic congestion identification by single detector ,this study focuses on using actual single detector data to recognize congestion .Based on analyzing the field traffic data ,critical occu-pancy can divide the state of traffic flow into congested and uncongested flow .Speed to occupancy ratio and speed differ-ence can design a multiple indicator identification method to determine the time of congestion occurrence and end time .Fi-nally ,after three indicators threshold are calibrated ,this identification method is applied to Beijing urban expressway . The result shows that this method can identify congestion effectively in starting time ,duration ,and finishing time .
翻译关键词
traffic congestion
urban traffic
speed to occu-pancy ratio
congestion identification
occupancy
speed difference
automatic judgment method
获取号
WF:perioarticaljtyjsj201402006
