Judgement method of setting conditions of pedestrian two-step street crossing, and timing optimization method of pedestrian two-step street crossing

Abstract

The invention provides a judgement method of setting conditions of pedestrian two-step street crossing, and a timing optimization method of pedestrian two-step street crossing. The judgement method comprises the steps of: judging whether an intersection meets a traditional setting condition of a pedestrian two-step street crossing facility, and determining the weight of the traditional setting condition according to the judgment result; comparing the pedestrian saturation with a preset saturation threshold, and determining the weight of the pedestrian saturation according to the comparison result; comparing a vulnerable group proportion with a preset proportion threshold in the traffic composition, and determining the weight of the vulnerable group proportion according to the comparison result; calculating a total setting condition coefficient of pedestrian two-step street crossing according to the weight of the traditional setting condition, the weight of the pedestrian saturation andthe weight of the vulnerable group proportion, and determining whether the pedestrian two-step street crossing facility needs to be disposed at the intersection according to the total setting condition coefficient. By adopting the judgement method provided by the invention, a wider judgment condition is provided for the setting of two-step street crossing, and a corresponding timing scheme is provided for the signal control of two-step street crossing.

Description

technical field [0001] The invention relates to the technical field of traffic control, in particular to a method for discriminating the setting conditions of secondary pedestrian crossings and optimizing the timing. Background technique [0002] Pedestrian traffic system is an important part of urban traffic. However, unfavorable factors such as the inconsistency between road physical conditions and signal configuration at signalized intersections, the short green light time for pedestrians crossing the street, and the lack of consideration for pedestrians in traffic planning and design, bring pedestrian crossing problems. Pedestrians run red lights frequently, and "mixed pedestrians and vehicles" is more common, which is more likely to cause traffic accidents. In the traditional single-crossing mode, it is difficult for pedestrians to pass through the intersection within an effective green light time. The secondary crossing mode can provide a safe waiting area for pedestr...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problems existing in the prior art that less consideration is given to pedestrian traffic factors when judging setting conditions and determining timing parameters, and more fixed timing is used, the present invention provides a method for judging and matching the setting conditions of secondary pedestrian crossings. The timing optimization method takes the dynamic pedestrian traffic composition and pedestrian saturation as the consideration factors for the setting conditions of the secondary crossing and the timing of the signal, and provides a wider discrimination condition for the setting of the secondary crossing, and provides a basis for the secondary crossing. The signal control provides the corresponding timing scheme

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