Traffic control optimization method and device

Abstract

The invention provides a traffic control optimization method and device. The method comprises the following steps: obtaining traffic data of a road intersection, wherein the traffic data comprises data for expressing geometric features and dynamic features of the intersection road, the dynamic features comprising a traffic signal control scheme and traffic conditions under the traffic signal control scheme; obtaining road traffic saturation degree of the intersection according to the traffic data; then, comparing the road traffic saturation degree and a preset judgment threshold range, determining a final traffic optimization objective according to the comparison result, and obtaining an intersection channelization design and traffic signal control integrated optimization plan according to the traffic data and the final traffic optimization objective. The traffic control optimization method and system can carry out integrated optimization on intersection channelization design and traffic signal control simultaneously, thereby improving matching degree between the two and alleviating traffic congestion degrees.

Description

technical field [0001] 本发明涉及交通控制技术领域,具体地说涉及一种交通控制优化方法及装置。 Background technique [0002] 随着城市化进程的不断推进以及城市人口密度和汽车保有量的迅速增加,交通拥堵现象时常发生,城市交通问题日益严峻,严重影响了城市的高效运转和居民的工作生活。 [0003] 城市交通拥堵的主要原因就是交叉口发生了拥堵。交叉口上的行车道如果没有控制方向的设施和标线,就会破坏交通流通道的明确性,降低行车安全。因此,为使驾驶员在路口能按正确路线行车,减少随意性,多采用“交叉口渠化”的方法,即在行车道上设置各种交通岛将部分交叉封闭起来,并用标线将禁行区分隔开,尽可能分散车流相交的冲突点。实践证明,交叉口渠化是非常重要的一种安全措施。然而,与车流方向和交通量不相适应的渠化方案,也会扰乱交通秩序,降低通行能力,并可能导致交通事故的增加。 [0004] 根据实际的交通状况对交叉口进行渠化优化改造有助于缓解交通拥堵。目前常采用人工调查和计算机辅助的方式进行渠化改造方案的设计。而对于交通信号控制方案的优化,一般基于传统理论方法进行计算机辅助计算,或者应用当前的商用软件进行。 [0005] 但现有的交通控制优化方法都只是针对交叉口渠化设计或者交通信号控制的单一方面的优化,不能同时对二者进行综合优化,导致交叉口渠化设计与交通信号控制两者间的匹配性较低,不能有效缓解交通拥堵的状况。 Contents of the invention [0006] 为此,本发明所要解决的技术问题在于现有的交通控制优化方法不能同时对交叉口渠化设计和交通信号控制进行综合优化,导致两者之间匹配性较低,不能有效缓解交通拥堵的 situation. [0007] In order to solve the problems of the technologies described above, the technical solution of the present invention is as follows: [0008] 根据本发明实施例的一个方面,提供了一种交通控制优化方法,包括:获取道路交叉口的交通数据,所述交通数据包括表示该道路交叉口的几何特征和动态特征的数据,所述动态特征包括...

AI Technical Summary

Problems solved by technology

[0006] For this reason, the technical problem to be solved by the present invention is that the existing traffic control optimization method cannot comprehensively optimize the intersection canalization design and traffic signal control at the same time, resulting in a low matching between the two, which cannot effectively alleviate traffic congestion. situation

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