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出口车道数不足对信控交叉口直行车流通行效率的影响

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文中以武汉市19个出口车道数不足的信控交叉口实测数据为基础,分析直行车流通行状况及影响因素,建立了基于有序多分类Logistic回归的通行效率分析模型.结果表明:绿灯启亮后消散流率达到顶峰后存在一定的下降趋势且具有波动性;交叉口宽度对直行车流的交通流率有显著影响,若四变三交叉口宽度小于44 m,或三变二交叉口宽度小于45 m,或二变一交叉口宽度小于48 m,其通行效率低于将进口直行车道减少1条的情形;汇入的右转车辆对直行车流通行的影响大于同向的右转车辆的影响.
Influence of Insufficient Exit Lanes on the Efficiency of Through Traffic at Signalized Intersections
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.

traffic engineeringsignalized intersectioninsufficient number of exit lanestraffic effi-ciencyordinal multinomial logistic regression

潘寿燕、张存保、霍礼辉、王子琦

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武汉理工大学智能交通系统研究中心 武汉 430063

交通信息与安全教育部工程研究中心 武汉 430063

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

国家重点研发计划项目

2020YFB1600500

2024

武汉理工大学学报(交通科学与工程版)
武汉理工大学

武汉理工大学学报(交通科学与工程版)

CSTPCD
影响因子:0.462
ISSN:2095-3844
年,卷(期):2024.48(5)