Method for dividing signal-timing periods of intersections

A technology of time division and signal timing, applied in the direction of controlling traffic signals, etc., can solve the problems of complex calculation process, congestion, delay, etc., and achieve the effect of high segmentation fitting accuracy, simple and reliable method, and wide adaptability.

Active Publication Date: 2014-09-10
TRAFFIC MANAGEMENT RES INST OF THE MIN OF PUBLIC SECURITY
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Problems solved by technology

[0003] At present, the most common method of intersection signal control is single-point fixed-period signal control. The main method to improve the efficiency of single-point fixed-period signal control is to adopt a multi-period timing scheme. In the past, multi-period timing generally only used peak and flat peak hours When the division of time slots is too simple, the timing scheme designed through this simple division of time slots often leads to the inability to fully utilize the green light time and fail to adapt to changes in

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  • Method for dividing signal-timing periods of intersections
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  • Method for dividing signal-timing periods of intersections

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[0029] The present invention will be further described below in conjunction with specific drawings and embodiments.

[0030] At present, the existing signal timing periods are often roughly divided into several periods such as morning peak, afternoon peak and evening peak based on experience or traffic volume. The effect is not ideal.

[0031] Such as figure 1 Shown: in order to carry out effective signal timing period division to intersection, the timing period division method of the present invention comprises the following steps:

[0032] a. Collect the traffic flow data of the desired intersection, and calculate the intersection flow ratio of the intersection;

[0033] Specifically, include the following steps:

[0034] a1. Collect the traffic flow data of the required intersection, including the hourly traffic flow and saturated traffic flow of the divergent direction, and calculate the traffic flow corresponding to the flow direction;

[0035] The saturated traffic f...

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Abstract

The invention relates to a method, particularly relates to a method for dividing signal-timing periods of intersections, and belongs to the technical field of road traffic signal control. The technical scheme includes that the method for dividing the signal-timing periods of the intersections comprises steps of a, acquiring required traffic stream data of the intersections and computing intersection flow ratios of the intersections; b, computing the optimal signal cycle durations by the aid of the intersection flow ratios and signal cycle lost time; c, computing timing period dividing thresholds according to the optimal signal cycle durations and dividing a certain period as a timing period when the timing period dividing threshold corresponding to the certain period is matched with a preset period dividing judgment threshold. The method has the advantages of high piecewise fitting precision, simplicity, reliability, practicality and wide application range.

Description

technical field [0001] The invention relates to a method, in particular to a method for dividing signal timing periods at intersections, and belongs to the technical field of road traffic signal control. Background technique [0002] In recent years, with the rapid development of the national economy and the acceleration of the urbanization process, the demand for urban road traffic has increased sharply, people travel frequently, vehicles have increased significantly, and roads have continued to expand. But in contrast, the construction of urban transportation infrastructure is obviously lagging behind, far behind the rapidly growing traffic demand, and the contradiction between the two has become increasingly prominent. Due to the mutual interference between motor vehicles, non-motor vehicles and pedestrians in different directions at intersections, problems such as traffic jams, speed reduction, and traffic accidents are prone to occur. Adjustment through relevant traffi...

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Application Information

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IPC IPC(8): G08G1/08
Inventor 代磊磊刘东波李娅孙正良顾金刚王运霞
Owner TRAFFIC MANAGEMENT RES INST OF THE MIN OF PUBLIC SECURITY
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