Performance Evaluation of Modified Cyclic Max-Pressure Controlled Intersections in Realistic Corridors
Performance Evaluation of Modified Cyclic Max-Pressure Controlled Intersections in Realistic Corridors
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DOI：
10.1177/03611981211072807
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发表时间：
2022-06
影响因子：
1.7
通讯作者：
Simanta Barman;M. Levin
中科院分区：
文献类型：
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作者：
Simanta Barman;M. Levin
最大压力信号配时是一种受激励的分散式信号控制策略。严格的数学研究已经证明了稳定性，并建立了不同的MP政策的好处。然而，理论研究假设的交通属性，可能不代表现实，其影响并没有在现实的交通条件下，在文献中探讨太多。本研究的重点是研究如何不同的MP的变化在现实的情况下执行，并找到最实用的政策之间的实施在真实的道路。从两个走廊，县道（CR）30和CR 109从亨内平县，明尼苏达州的七个交叉口的微观仿真模型。Hennepin县提供的真实需求和当前信号配时数据被用来使模拟尽可能接近现实。在本文中，我们比较了当前的致动协调信号控制的性能与非循环MP和两种变化的循环MP政策。我们提出了不同的控制策略的延迟，吞吐量，最坏的车道延迟，和相位变化的数量的性能。我们还提出了不同的参数如何影响MP政策的性能。我们发现，更好的性能可以实现与循环MP政策，允许跳相时，没有车辆等待。我们的研究结果还表明，大多数声称的性能优势仍然可以在现实生活中的交通条件下实现，即使在理论模型的简化假设。在大多数情况下，MP控制策略优于当前的信号控制。
Max-pressure (MP) signal timing is an actuated decentralized signal control policy. Rigorous mathematical studies have proven the stability properties and established the benefits of different MP policies. However, theoretical studies make assumptions about traffic properties that may not represent reality and whose effects are not explored much in the literature under realistic traffic conditions. This study focuses on examining how different variations of MP perform in realistic scenarios and on finding the most practical policy among those for implementation in real roads. Microsimulation models of seven intersections from two corridors, County Road (CR) 30 and CR 109 from Hennepin County, Minnesota were created. Real-life demand and current signal timing data provided by Hennepin County were used to make the simulations as close to reality as possible. In this paper, we compare the performance of current actuated-coordinated signal control with an acyclic MP and two variations of cyclic MP policies. We present the performance of different control policies as delay, throughput, worst lane delay, and number of phase changes. We also present how different parameters affect the performance of the MP policies. We found that better performance can be achieved with a cyclic MP policy by allowing phase skipping when no vehicles are waiting. Our findings also suggest that most of the claimed performance benefits can still be achieved in real-life traffic conditions even with the simplified assumptions made in the theoretical models. In most cases, MP control policies outperformed current signal control.