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Continuous flow intersection left turn non-motor vehicle traffic organization system and signal control method

An organizational system and signal control technology, applied in the field of traffic engineering, can solve the conflicts between left-turning non-motorized vehicles and straight-going motorized vehicles, and achieve the effects of improving operating efficiency, ensuring stable operation, and avoiding conflicts

Active Publication Date: 2021-09-07
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem of conflict between left-turning non-motorized vehicles and straight-going motor vehicles in continuous-flow intersections, and propose a traffic organization system and signal control method for left-turning non-motorized vehicles at continuous-flow intersections

Method used

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  • Continuous flow intersection left turn non-motor vehicle traffic organization system and signal control method
  • Continuous flow intersection left turn non-motor vehicle traffic organization system and signal control method
  • Continuous flow intersection left turn non-motor vehicle traffic organization system and signal control method

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specific Embodiment approach 1

[0023] Specific implementation mode 1. Combination figure 1 and figure 2 This embodiment will be described. A kind of non-motor vehicle traffic organization system that turns left at a continuous flow intersection described in this embodiment, the traffic geometric design of the system is specifically:

[0024] For each exit of the continuous flow intersection, a secondary waiting area for left-turn non-motor vehicles shall be set at the separation strip between the exit straight lane and the shifted left-turn lane, and on the side close to the main signal intersection;

[0025] In the center of the main signalized intersection, a left-turn non-motor vehicle at the east entrance is set between the straight-going motor vehicle trajectory at the east entrance and the left-turn motor vehicle trajectory at the west entrance. Turn left at the intersection of the secondary waiting area for motor vehicles to the non-motor vehicle lane;

[0026] Between the straight-going motor ve...

specific Embodiment approach 2

[0031] Specific embodiment two: the difference between this embodiment and specific embodiment one is that the area of ​​the secondary waiting area for left-turn non-motorized vehicles meets the following requirements:

[0032]

[0033] In the formula: A max is the area of ​​the secondary waiting area for left-turn non-motorized vehicles, the unit is m 2 ;K b is the parking density of non-motorized vehicles, the unit is vehicle / m 2 ; μ is the non-motor vehicle flow fluctuation coefficient; C is the signal period length, the unit is s; It is the traffic demand of non-motorized vehicles turning left, and the unit is vehicle / s.

[0034] In order to accommodate all left-turn non-motor vehicle parking queues in the previous stage, the width of the separation strip between the exit straight lane and the shifted left-turn lane can be adjusted, or the parking line can be moved backward to increase the number of left-turn non-motor vehicles. The area of ​​the secondary waiting ...

specific Embodiment approach 3

[0035] Specific embodiment three, combine image 3 This embodiment will be described. A signal control method for a left-turn non-motor vehicle traffic organization system at a continuous flow intersection described in this embodiment, the signal control method is specifically:

[0036] The main signal of the continuous flow intersection is two-phase control, and the two-phase control is a combined traffic phase composed of east-west straight travel and east-west left turn, and a combined traffic phase composed of north-south straight travel and north-south left turn;

[0037] The process of driving left-turning non-motorized vehicles from the safety island at the starting point to the secondary waiting area for left-turning non-motorized vehicles is called the first stage. The process of driving the motorway to the terminal safety island is called the second stage;

[0038] The first stage of the east-west turn left non-motor vehicle is released in the same phase as the eas...

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Abstract

The invention discloses a continuous flow intersection left-turn non-motor vehicle traffic organization system and a signal control method, and belongs to the field of traffic engineering. According to the invention, the problem of conflict between left-turn non-motor vehicles and straight motor vehicles in the continuous flow intersection is solved. The geometric layout of the continuous flow intersection is optimized and improved, namely, an intersection left-turn non-motor vehicle lane is arranged between driving tracks of left-turn motor vehicles and straight motor vehicles at a main signal intersection, and left-turn non-motor vehicles run from a starting point safety island to a left-turn non-motor vehicle secondary waiting area through the intersection left-turn non-motor vehicle lane; the left-turn non-motor vehicles pass through the intersection transverse non-motor vehicle lane and then run to the end point safety island from the left-turn non-motor vehicle secondary waiting area, the conflict between the left-turn non-motor vehicles and the straight motor vehicles is avoided, a corresponding signal phase scheme and a corresponding control method are designed, it is guaranteed that the left-turn non-motor vehicles safely cross the street, and the running efficiency of the continuous flow intersection is remarkably improved. The method can be applied to the field of traffic engineering.

Description

technical field [0001] The invention belongs to the field of traffic engineering, and in particular relates to a traffic organization system and a signal control method for non-motor vehicles turning left at continuous flow intersections. Background technique [0002] The continuous flow intersection is a kind of shifted left-turn design. By setting a pre-signalized intersection on the upstream entrance road section, the entrance left-turn lane is shifted to the outside of the exit straight lane, which is called a shifted left-turn lane. Vehicles turn into the shifted left-turn lane in advance at the pre-signalized intersection to eliminate the left-turn and straight-going conflicts at the main-signalized intersection, and realize the left-turn, straight-going and right-turning traffic flow of the same road at the main signalized intersection in the same phase. The capacity can be doubled, and the traffic benefit is good. [0003] At present, the continuous flow intersectio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/083G08G1/16
CPCG08G1/083G08G1/166
Inventor 宋浪胡晓伟杨滨毓王健杨璐
Owner HARBIN INST OF TECH