Signal coordination model for local arterial with heavy bus flows
Signal coordination model for local arterial with heavy bus flows
复制标题
DOI：
10.1080/15472450.2017.1394191
复制
发表时间：
2018-09
影响因子：
3.6
通讯作者：
Yao Cheng;X. Yang
中科院分区：
文献类型：
--
作者：
Yao Cheng;X. Yang
摘要传统的公交信号优先（TSP）控制往往达到限制的干线容纳繁忙的公交流量，因为优先功能可以显着增加延误在次要街道。在这种情况下，一个适当的信号进展计划，占巴士的好处，可能会提供潜在的提高巴士运营的可靠性和增加巴士乘客。本研究提出一个以公交车为基础的行进模式，以减少公交车在局部干道上的延误。给定每个交叉口的周期长度和绿色间隔，基于公交的行进模型基于与传统信号行进方法相同的概念，考虑了公交车辆的运行特性，例如公交车停留时间的影响和公交车站的容量限制。此外，为了处理的随机性质的停留时间，本研究引入了额外的限制，以最大限度地提高巴士的百分比，可以留在绿色带后离开巴士站。以一条有五个交叉口和三个双向公交站点的主干道为例，应用VISSIM作为模型评价的无偏工具。仿真结果表明，与传统的进展模型相比，该模型能显著降低公交乘客延误和整个干线的平均人延误.
ABSTRACT Conventional Transit Signal Priority (TSP) controls often reach the limitation for arterials accommodating heavy bus flows since the priority function can significantly increase delay at minor streets. Under such conditions, a proper signal progression plan that accounts for the benefits of buses may offer the potential to improve the reliability of bus operations and increase the bus ridership. This study proposes a bus-based progression model to reduce the delay of buses on local arterials. Given the cycle length and green splits at each intersection, the bus-based progression model, grounded on the same notion as conventional signal progression methods, considers the operational characteristics of transit vehicles, such as the impact of bus dwell time and the capacity constraints at bus stops. Also, to deal with the stochastic nature of dwell time, this study introduces additional constraints to maximize the percentage of buses which can stay within the green band after leaving bus stops. Taking an arterial with five intersections and three two-way bus stops as an example, this study applies VISSIM as an unbiased tool for model evaluation. The simulation results demonstrate that the proposed model can significantly reduce bus passenger delays and the average person delays for the entire arterial, compared with the conventional progression models.