Minimizing the Average Delay at Intersections via Presignals and Speed Control

Minimizing the Average Delay at Intersections via Presignals and Speed Control
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通过预信号和速度控制最大限度地减少交叉口的平均延误

DOI:
10.1155/2018/4121582
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发表时间:
2018-05
影响因子:
2.3
通讯作者:
Qi Weiwei
Qi Weiwei
中科院分区:
工程技术4区
文献类型:
--
作者:
Ghanbarikarekani Mina;Qu Xiaobo;Zeibots Michelle;Qi Weiwei

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城市交叉口已被公认为城市交通系统的瓶颈。因此,提出和实施提高公共和私营交通系统整体效率的战略十分重要。为了实现这一目标,可以在路口附近增设一个信号,通过在主路口提前停车作为预信号,让公交车优先通行。它在城市中越来越受欢迎。虽然预信号确实减少了每位出行者的平均延误,但它们会导致私家车额外停靠,这可能会影响整体效率、安全性和可持续性。本文旨在提出一种通过减少车辆在预信号后停靠的次数来改善预信号的模型。通过应用这种方法,车辆将能够根据交通状况以及公交车的速度和接近来调整速度。已经进行了数值分析,以确定实施该方法所需的条件。
Urban intersections have been well recognized as bottlenecks of urban transport systems. It is thus important to propose and implement strategies for increasing the efficiency of public and private transportation systems as a whole. In order to achieve this goal, an additional signal could be set up near the intersection to give priority to buses through stopping vehicles in advance of the main intersection as a presignal. It has been increasingly popular in urban cities. While presignals indeed reduce the average delay per traveler, they cause extra stops of private vehicles, which might compromise the overall efficiency, safety, and sustainability. This paper aims to propose a model to improve presignals by reducing the vehicles’ number of stops behind the presignals. By applying the method, vehicles would be able to adjust their speed based on traffic conditions as well as buses’ speed and approach. Numerical analyses have been conducted to determine the conditions required for implementing this method.
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