Method for deploying and controlling urban road passage system

Abstract

The invention provides a method for deploying and controlling an urban road passage system. The method is suitable for a motor vehicle signal intersection with a special left-turn phase. The deployment of the urban road passage system is realized by determining the retreating distance of a straight parking line, optimizing the parking line, designing pedestrian crossings according to street-crossing characteristics shown when pedestrians participate in traffic behaviors at intersections, carrying out geometric design optimization on planar pedestrian crossings, dividing pedestrian passing waiting areas and pedestrian passing areas, and enabling the pedestrians to enter the passing waiting areas to select to pass through inclined pedestrian crossings or to wait to pass through forward pedestrian crossings. Meanwhile, the invention provides a control method of the urban road traffic system, the traffic sequence of motor vehicles and pedestrians is reasonably allocated based on the allocation method of the traffic system, traffic space resources of the intersection are fully utilized, the number of pedestrians capable of passing through the intersection in unit time is greatly increased, aAnd meanwhile, the passing efficiency of vehicles and pedestrians is obviously improved.

Description

technical field [0001] The invention relates to the technical field of traffic information and control, in particular to a deployment and control method of an urban road traffic system. Background technique [0002] With the rapid development of the national economy, urban transportation has been developed in many ways, and the number of motor vehicles is also growing rapidly. Pedestrians are the most vulnerable groups at complex intersections such as commercial centers. In order to improve the safety of road traffic participants, road sections and intersections will adopt the method of separating motor vehicle flow and pedestrian flow to avoid traffic conflicts between them. Often spatial and temporal separations are used to separate motor vehicle and pedestrian flows; [0003] Among them, space separation is realized through three-dimensional street crossing facilities, pedestrian crossing facilities where pedestrian roads and motor vehicle roads are on different planes. ...

AI Technical Summary

Problems solved by technology

Pedestrian crossing facilities can be set up above or below the vehicle road by establishing bridges and excavating passages. The three-dimensional street crossing facilities can separate pedestrians and motor vehicles from space to achieve safe pedestrian crossing. This kind of street crossing facilities can maximize To ensure the safety of pedestrians crossing the street, and pedestrians and motor vehicles can pass through at the same time, but the construction and maintenance costs of such street crossing facilities are high, and the construction will be restricted by the surrounding environment;

[0004] Among them, the time separation is achieved through plane crossings. In actual situations, parallel pedestrian crossings are dominant due to low construction costs. For pedestrian crossing facilities where motor vehicle roads and pedestrian roads are on the same plane, pedestrian crossing areas are established through zebra crossings and other markings. , Motor vehicle road stop lines and other markings establish motor vehicle stop areas. In order to provide enough queuing space at intersection entrances, most intersections set straight parking lines too early, which compresses the internal driving area of ​​the intersection. As a result, the internal driving space of the intersection is reduced, and vehicles cannot quickly leave the intersection within the effective green light time

The vehicle starts after the green light is turned on, and the vehicle begins to accelerate slowly into the intersection driving area from stationary to slowly. Since the vehicle enters the intersection at a slow speed, the interaction between the vehicles is strong, and the motor vehicle flow is not smooth, and it will be in the form of traffic waves. The form continues to affect the follow-up traffic flow, causing traffic jams, thus losing a large amount of passing time for motor vehicles and pedestrians, and because pedestrian roads and motor vehicle roads are in the same plane, it is difficult to fully guarantee the safety of pedestrians

Images