Emergency Traffic-Light Control System Design for Intersections Subject to Accidents
Emergency Traffic-Light Control System Design for Intersections Subject to Accidents
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DOI：
10.1109/tits.2015.2466073
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发表时间：
2016
影响因子：
8.5
通讯作者：
Liang Qi;Mengchu Zhou;Wenjing Luan
中科院分区：
文献类型：
--
作者：
Liang Qi;Mengchu Zhou;Wenjing Luan
Petri网(PNS)作为一种可视化的数学形式被很好地用于离散事件系统的建模。本文采用确定性和随机性相结合的方法，设计了一种交叉口交通信号灯应急控制系统，为交通事故提供应急响应。根据受阻路口的动态PN模型，设计了相应的紧急红绿灯策略，以保证路口的安全。说明了受影响的交叉口和道路上的交通灯/设施之间的协作。对于上游相邻交叉口，设计了基于交通信号的紧急控制策略，以帮助防止事故引发的大规模拥堵。开发了死锁恢复、活锁预防和冲突解决策略。采用可达性分析方法对所构建的模型进行验证。据我们所知，这是第一篇使用PNS来建模和设计面向交叉口事故的实时交通应急系统的论文。它可用于提高交叉口交通事故实时管理和交通安全水平。
Petri nets (PNs) are well utilized as a visual and mathematical formalism to model discrete-event systems. This paper uses deterministic and stochastic PNs to design an emergency traffic-light control system for intersections providing emergency response to deal with accidents. According to blocked crossing sections, as depicted by dynamic PN models, the corresponding emergency traffic-light strategies are designed to ensure the safety of an intersection. The cooperation among traffic lights/facilities at those affected intersections and roads is illustrated. For the upstream neighboring intersections, a traffic-signal-based emergency control policy is designed to help prevent accident-induced large-scale congestion. Deadlock recovery, livelock prevention, and conflict resolution strategies are developed. We adopt a reachability analysis method to verify the constructed model. To our knowledge, this is the first paper that employs PNs to model and design a real-time traffic emergency system for intersections facing accidents. It can be used to improve the state of the art in real-time traffic accident management and traffic safety at intersections.