Cross intersection traffic signal lamp arrangement judgment method

Abstract

The invention discloses a cross intersection traffic signal lamp arrangement judgment method which successively comprises the steps of establishing a cross intersection traffic characteristic data set without traffic signal control, numbering of each entrance direction of the intersection, intersection equivalent traffic flow characteristic parameter calculation, establishing and calibrating a cross intersection passenger total delay model without traffic signal control, determination of a cross intersection signal timing scheme, establishing and calibrating the intersection passenger total delay model under the signal timing scheme, establishing a main-branch equivalent traffic flow calculation model, determining a main-branch equivalent traffic flow threshold diagram and judging arrangement of the traffic signal lamp at the intersection. Compared with the conventional subjective judgment method, the judgment method is relatively objective and accurate and has high operability so that the fine level of urban road traffic management and control can be further enhanced, and the beneficial reference can be provided for scientific decision of the urban traffic manager.

Description

technical field [0001] The invention belongs to the technical field of urban traffic, and in particular relates to a method for discriminating the setting of traffic signal lamps at cross intersections. Background technique [0002] Road intersections are the main areas where traffic problems such as traffic congestion, traffic accidents, and traffic pollution occur. These traffic problems at intersections are, in the final analysis, the problems of unreasonable traffic control methods and inappropriate control methods at intersections. Among them, whether signal lights need to be installed at intersections is the primary problem of whether the aforementioned traffic problems can be alleviated: if signal lights are installed at intersections that do not need to set signal lights, it will greatly increase the traffic delay of vehicles within the intersection range and reduce traffic at the intersection. On the contrary, if the signal lights are not set at the intersections t...

AI Technical Summary

Problems solved by technology

These traffic problems at intersections are, in the final analysis, the problems of unreasonable traffic control methods and inappropriate control methods at intersections.

Among them, whether signal lights need to be installed at intersections is the primary problem of whether the aforementioned traffic problems can be alleviated: if signal lights are installed at intersections that do not need to set signal lights, it will greatly increase the traffic delay of vehicles within the intersection range and reduce traffic at the intersection. Conversely, if signal lights are not set at the intersections that need to be set with signal lights, the traffic at the intersection will be chaotic and cause serious traffic safety hazards

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