Pedestrian Timing Alternatives and Impacts on Coordinated Signal Systems Under Split-Phasing Operations
Pedestrian Timing Alternatives and Impacts on Coordinated Signal Systems Under Split-Phasing Operations
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DOI：
10.3141/1748-06
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发表时间：
2001
影响因子：
1.7
通讯作者：
Z. Tian;T. Urbanik;R. Engelbrecht;K. Balke
中科院分区：
文献类型：
--
作者：
Z. Tian;T. Urbanik;R. Engelbrecht;K. Balke
在某些几何和交通流条件下，分相有时可以更有效地服务车辆交通，例如通过共享车道配置服务大量左转交通的情况。然而，行人过街时间要求可能会对交叉口操作产生重大影响，特别是在协调信号系统中。提出了在分阶段操作下提供行人计时的各种替代方案。针对每种计时方案，讨论了优点和缺点、实施策略以及对交叉路口操作（尤其是协调信号系统）的潜在影响。此外，还研究了两阶段交叉路口设计的概念以及分阶段操作下专用行人阶段的使用。所提出的模型可用于确定何时独占行人分相可以真正提高运营效率。
Split phasing can sometimes be more efficient in serving vehicular traffic under certain geometric and traffic flow conditions, such as the case in which a high volume of left-turning traffic is served from a sharedlane configuration. However, pedestrian crossing-time requirements can have a significant impact on intersection operations, especially in coordinated signal systems. Various alternatives for providing pedestrian timings under split-phasing operations are presented. The advantages and disadvantages, implementation strategies, and potential impact on intersection operations, especially on coordinated signal systems, are addressed with regard to each timing alternative. Further, the concept of the two-stage crossing design and the use of an exclusive pedestrian phase under split-phasing operations are investigated. The proposed model can be used to determine when exclusive pedestrian phasing can actually improve operational efficiency.