Based on the measured data of 19 signalized intersections with insufficient exit lanes in Wu-han,the traffic conditions and influencing factors of through traffic were analyzed,and a traffic effi-ciency analysis model based on ordered multi-classification Logistic regression was established.The results show that there is a certain downward trend and fluctuation after the dissipation rate reaches the peak after the green light is turned on.The width of the intersection has a significant impact on the traffic flow rate of the through traffic.If the width of the four-to-three intersection is less than 44m,or the width of the three-to-two intersection is less than 45m,or the width of the two-to-one in-tersection is less than 48m,the traffic efficiency is lower than that of the case where the entrance through lane is reduced by one lane.The influence of the incoming right-turn vehicles on the straight traffic flow is greater than that of the right-turn vehicles in the same direction.
关键词
交通工程/信控交叉口/出口车道数不足/通行效率/有序多分类Logistic回归
Key words
traffic engineering/signalized intersection/insufficient number of exit lanes/traffic effi-ciency/ordinal multinomial logistic regression
维普
万方数据