CAJ | 학술논문

为弥补单点检测器判定交通拥堵方法研究的不足，在对实测数据分析的基础上，利用临界占有率将交通流状态划分为拥堵状态与非拥堵状态，提出了以速度-占有率比、速度差双指标判定交通拥堵状态发生、结束时刻的方法。并以北京城市快速路实测数据为例，对各判定指标阈值进行标定，判定结果表明：基于单点检测器设计的拥堵判定方法能够有效判定检测器断面拥堵发生时间、持续时间、结束时间。
위미보단점검측기판정교통옹도방법연구적불족，재대실측수거분석적기출상，이용림계점유솔장교통류상태화분위옹도상태여비옹도상태，제출료이속도-점유솔비、속도차쌍지표판정교통옹도상태발생、결속시각적방법。병이북경성시쾌속로실측수거위례，대각판정지표역치진행표정，판정결과표명：기우단점검측기설계적옹도판정방법능구유효판정검측기단면옹도발생시간、지속시간、결속시간。
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 .