The invention relates to an expressway shunting area traffic flow operation state evaluation method and system based on a self-organization theory. The method comprises the following steps: carrying out road section division on a diversion area and establishing a discrete dynamic traffic flow model of each road section of the diversion area; collecting traffic flow running state information in each road section, wherein the traffic flow running state information comprises the real-time average travel speed, the real-time vehicle number and the real-time vehicle road space occupancy rate of each road section; and after the collected data is subjected to normalization processing, the expansion entropy confusion degree of traffic flow operation within a period of time is calculated in combination with the overall operation state model of the shunting area, and the traffic flow self-organization evaluation of the shunting area is realized based on the expansion entropy confusion degree. The method can effectively reduce the calculation complexity of the disorder degree of the shunting area, can be used as an evaluation index for determining whether the traffic flow in the shunting area can realize self-organization or not, and can also be used as a basis for traffic flow operation optimization of the shunting area.
本发明涉及一种基于自组织理论的快速路分流区车流运行状态评价方法与系统。所述方法包括:将分流区进行路段划分并建立分流区各路段的离散动态交通流模型;收集各路段内车流运行状态信息,包括各路段的实时平均行程速度、实时车辆数和实时车辆道路空间占有率;收集到的数据经归一化处理后结合分流区整体运行状态模型,计算一段时间内车流运行的扩展熵混乱度,基于扩展熵混乱度实现对分流区的车流自组织评价。本发明能够有效降低分流区混乱程度的计算复杂度,可作为分流区内车流能否实现自组织的评价指标,也可作为分流区车流运行优化的依据。
Expressway shunting area traffic flow operation state evaluation method and system based on self-organization theory
一种基于自组织理论的快速路分流区车流运行状态评价方法与系统
2024-09-03
Patent
Electronic Resource
Chinese
IPC: | G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS |
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