On applying Petri nets to determine optimal offsets for coordinated traffic light timings
On applying Petri nets to determine optimal offsets for coordinated traffic light timings
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DOI：
10.1109/itsc.2002.1041317
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发表时间：
2002-09
期刊：
影响因子：
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通讯作者：
A. D. Febbraro;Davide Giglio;N. Sacco
中科院分区：
文献类型：
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作者：
A. D. Febbraro;Davide Giglio;N. Sacco
重要的运输系统类别可以用Petri网模型表示。本文将Petri网应用于由信号交叉口调节的城市交通系统的模块化表示。其基本思想是认为这样的系统是由基本的结构部件组成的，即交叉口和道路延伸。为了更全面地描述交通网络中车辆的运动，采用了一种微观表征，并通过定时Petri网实现。所设计的模型的一个有趣的特征在于，它可以表示嵌入在模型本身结构中的不同交通灯周期之间的偏移量。反过来，这使得我们可以简单地实现交通灯授时之间的协调，从而方便了相关优化问题的描述和求解。
Significant classes of transportation systems can be represented by Petri net models. In this paper, Petri nets are applied to provide a modular representation of urban traffic systems regulated by signalized intersections. The basic idea is to consider such systems to be composed of elementary structural components, namely, intersections and road stretches. In order to describe thoroughly the movement of vehicles in the traffic network, a microscopic representation is adopted and realized via timed Petri nets. An interesting feature of the designed model consists in the possibility of representing the offsets among different traffic light cycles as embedded in the structure of the model itself. In turn, that allows us to simply implement the coordination among traffic light timings, which facilitates the description and solution of the relevant optimization problems.