The capacity drop caused by the combined effect of the intersection and the bus stop in a CA model
The capacity drop caused by the combined effect of the intersection and the bus stop in a CA model
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DOI：
10.1016/j.physa.2007.07.040
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发表时间：
2007-11
影响因子：
3.3
通讯作者：
Xiaomei Zhao;Ziyou Gao;B. Jia
中科院分区：
文献类型：
--
作者：
Xiaomei Zhao;Ziyou Gao;B. Jia
本研究的目的是通过使用双车道CA模型来研究信号交叉口及其附近公交车站的综合效应。分别考虑了停车点位于交叉口上游和下游的四种情况，以及有无停车专用道的情况。从红绿灯周期T和公交停留时间Ts的角度，研究了车站与交叉口距离ldd对通行能力的影响。研究发现，交叉口附近的公交车站作为一个瓶颈，导致通行能力下降。负面影响只出现在临界点LDc以下，这与T和Tsin不停车车道的情况有关。T和T越大，产生的容量损失越大。而在停车车道情况下，临界值ldd变化不大。四种情况的对比结果表明，公交专用道能有效提高通行能力，且在小ldo、小T和大T时，下游站点的通行能力优于上游站点。结果表明，通过调整公交站点的位置和周期时间，或增加公交专用道可使通行能力最大化。研究结果可为交通网络的管理和设计提供科学的指导。
The aim of this work is to investigate the combined effect of the signalized intersection and its near-by bus stop, by using a two-lane CA model. Four cases that the stop locates upstream or downstream the intersection, and ones with the special stop lane or not are considered. The effect of the distance LDbetween the stop and the intersection on the capacity is studied, with respect to the traffic light cycle T and the bus dwell time Ts. It is found that acting as a bottleneck, the bus stop near the intersection causes the drop of the capacity. The negative effect only appears below a critical point LDc, which is related to the T and the Tsin no stop lane cases. The larger T and Tshave the tendency to create the higher loss of the capacity. While for stop lane cases, the critical value LDcchanges little. Comparisons among four cases suggest that the special stop lane can effectively enhance the capacity, and the downstream stops perform better than the upstream ones at small LDor small T or large Ts. The results imply that the capacity can be maximized by adjusting both the position of the bus stop and the cycle time, or adding a special stop lane. These findings may be useful to offer scientific guidance for the management and the design of traffic networks.