| Civil Engineering |
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| Modeling capacity of shared right-turn lanes considering right turn on red and lag green time of right-turn |
| LIU Mei-qi, SHEN Li-xiao, JIN Sheng |
| College of Civil Engineering and Architecture, Zhejiang University, Hangzhou 310058, China |
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Abstract The situation of blockage on shared lanes was divided into four cases: right-turn movement not being blocked during the red, right-turn movement being blocked during the red, through movement not being blocked during the lag time, through movement being blocked during the lag time. Then the corresponding probability and capacity under four cases were calculated. The capacity model of shared right-turn lanes considering right turn on red and the lag green time of right-turn was proposed. The presented model was verified by using microscopic traffic simulation software VISSIM. Results showed that the simulated results accorded with the theoretical model. The capacity on the shared lane increases with the decrease of the lag time, and the capacity has a negative correlation with the proportion of turning movement, while has a positive correlation with the effective green time.
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Received: 16 June 2016
Published: 08 July 2017
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考虑右转信号控制的共用车道通行能力模型
将直右共用车道车辆受阻挡情况分为直行红灯期间右转车流未被阻挡、直行红灯期间右转车流被阻挡、滞后放行期间直行车流未被阻挡和滞后放行期间直行车流被阻挡这4种情况，分别计算4种情况发生的概率及对应的通行能力，建立红灯右转和右转滞后放行信号控制条件下的信号交叉口直右共用车道通行能力模型.对典型交叉口的VISSIM开展仿真验证.结果表明，采用该模型能够精确地估计红灯右转和右转滞后放行条件下的直右共用车道通行能力，直右共用车道通行能力随着滞后放行时间的增加而减小.直右共用车道的通行能力与转向比例成负相关，与有效绿灯时间成正相关.
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