Intersection variable lane dynamic setting method considering lap joint phase

Abstract

The invention discloses an intersection variable lane dynamic setting method considering a lap joint phase, which belongs to the field of traffic management and control, and comprises the following steps: respectively enumerating traffic direction combination and phase combination schemes of each entrance lane of an intersection by detecting and counting traffic flow data of branch lanes of the intersection; on the basis, the periodic flow rate ratios of various phase combination schemes are calculated respectively, the phase combination scheme with the minimum periodic flow rate ratio and the corresponding lane passing direction combination are taken, so that the passing direction of the variable lane of each entrance, namely the lane changing scheme, is determined, and signal timing optimization is carried out; and the space-time passing efficiency of the intersection is further improved. In addition, in order to guarantee smooth transition when the variable lane scheme changes, the invention provides a method for combined use of variable lane LED indication boards at the intersection exit and the road section, a driver can be effectively guided to reasonably select a lane for passing, and the vehicle passing order during the implementation period of the variable lane scheme is further optimized.

Description

Technical field: [0001] The invention relates to the field of traffic management and control, in particular to a method for dynamically setting variable lanes at intersections considering overlapping phases. Background technique: [0002] At present, the general variable lane setting method is mainly to allocate the variable lanes to the direction with greater traffic demand according to the flow rate or queue length parameters of the straight-going and left-turn lanes of the same entrance, so as to alleviate the traffic congestion at the entrance. However, this method fails to comprehensively consider the timing of intersection signals, and only unilaterally optimizes the passing space, and the efficiency of intersections is not improved enough. [0003] According to the above situation, the current newly researched technology is to realize the collaborative optimization of space-time resources of variable lanes and signal timing at intersections: on the one hand, the traff...

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Problems solved by technology

[0007] In view of the current variable lane setting method that does not further study the signal phase optimization setting and does not consider the combination of overlapping phases and variable lanes, the problem of unbalanced space-time resource allocation at intersections and the lack of obvious improvement in traffic efficiency, the purpose of the present invention It provides a dynamic setting method of variable lanes at intersections considering overlapping phases, and designs an intersection traffic management that combines variable lane scheme control, signal phase optimization setting, overlapping phase scheme application, and traffic signal timing optimization. and control scheme, which is conducive to the further optimization of space-time resources at intersections with unbalanced traffic flow

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