An allocation method of urban road traffic system

Abstract

The invention proposes a method for allocating an urban road traffic system, which is suitable for a motor vehicle signal intersection with a special phase for left-turning. According to the characteristics of crossing the street, design the crosswalk, optimize the geometric design of the plane crosswalk, and divide the pedestrian waiting area and the pedestrian crossing area. It makes full use of the traffic space resources of the intersection, greatly increases the number of pedestrians who can pass through the intersection per unit time, and significantly improves the efficiency of vehicles and pedestrians.

Description

technical field [0001] The invention relates to the technical field of traffic information and control, in particular to a deployment method of an urban road traffic system. Background technique [0002] With the rapid development of the national economy, urban transportation has developed in many aspects, and the number of motor vehicles has continued to grow rapidly. Pedestrians are the most vulnerable groups at complex intersections such as commercial central areas. In order to improve the safety of road traffic participants, the method of separating motor vehicle flow and pedestrian flow will be adopted at road sections and intersections to avoid traffic conflicts between them. Typically spatial separation and temporal separation are used to separate motor vehicle and pedestrian flows; [0003] Among them, the space separation is realized by the three-dimensional street crossing facilities, and the pedestrian road and the motor vehicle road are respectively in different...

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

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