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A Conflict-Free Pedestrian Signal Timing Method for Two-Phase Intersections

A technology for signal timing and intersections, which is applied in the field of traffic engineering and can solve the problem of not providing pedestrians with safe crossing time intervals.

Active Publication Date: 2020-12-11
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 that the existing method does not provide a time interval for pedestrians to cross the street safely when eliminating the conflict between turning left and going straight under the control of two-phase signals

Method used

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  • A Conflict-Free Pedestrian Signal Timing Method for Two-Phase Intersections
  • A Conflict-Free Pedestrian Signal Timing Method for Two-Phase Intersections
  • A Conflict-Free Pedestrian Signal Timing Method for Two-Phase Intersections

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specific Embodiment approach 1

[0044] Specific implementation mode one: as figure 1 As shown, a conflict-free pedestrian signal timing method at a two-phase intersection described in this embodiment includes the following steps:

[0045] In front of the main signal stop line of each entrance, set up pedestrian crossing lines that walk on the right and separate left and right lanes. Among them, the line close to the main signal stop line is called the outer pedestrian crossing line, and the line close to the center of the intersection is called the inner pedestrian crossing line. The outer pedestrian crossing line and the inner pedestrian crossing line of the road form the pedestrian crossing area of ​​each entrance road;

[0046] According to the arrival direction of vehicles at each entrance, the crosswalk areas are respectively numbered PS, PE, PN and PW, among which: PS represents the crosswalk area of ​​the south entrance road, PE represents the crosswalk area of ​​the east entrance road, PN represents ...

specific Embodiment approach 2

[0061] Specific embodiment two: the difference between this embodiment and specific embodiment one is: the m of the PS A5 The duration of the blinking green light satisfy:

[0062]

[0063]

[0064] In the formula: Pedestrian crossing lights representing PS m A5 The duration of the flashing green light, Pedestrian crossing signal lights for PS m A5 Display the green light time, and They are the time of the green light and the time of the yellow light going straight at the west entrance, respectively, in seconds.

specific Embodiment approach 3

[0065] Specific embodiment 3: The difference between this embodiment and specific embodiment 2 is: the turn-on green light at the south entrance is late for the turn-on green light at the west entrance θ WS The expression is:

[0066]

[0067] in: Pedestrian crossing signal for PW m A2 The duration of the green light displayed, Pedestrian crossing lights representing PS m A4 The duration of the green light displayed, Pedestrian crossing lights representing PS m A4 The duration of the flashing green light, Pedestrian crossing signal for PW m A2 The duration of the flashing green light, It is the yellow light time for the left turn phase at the west entrance, is the travel time from the main signal stop line to PW for the left-turn traffic flow at the south entrance, in seconds;

[0068] In the same way, the turn-on green light at the north entrance is late for the green light at the east entrance to go straight θ EN , Turning left at the west entrance and turni...

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Abstract

The invention relates to a collision-free pedestrian signal time assignment method for a two-phase intersection and belongs to the technical field of traffic engineering. According to the method, the problem that the time interval for safety crossing of pedestrians is not provided when the conflict of left turn and straight going under the control of two-phase signals is eliminated in the prior art is solved, wherein pedestrian crossing signals are subjected to time assignment, so that the collision between the pedestrians and motor vehicles is avoided in time, the time interval for safety crossing is provided for the pedestrians, the problem of two-phase collision-free intersection pedestrian crossing is solved, and the pedestrian crossing safety is guaranteed; main and auxiliary signals of the motor vehicles and pedestrian signals in the intersection are coordinated for time assignment, while the demand for pedestrian passing is met, the interference on the motor vehicles is reduced to the maximum extent, and the traffic capacity of the motor vehicles in the intersection is guaranteed. The method in the invention can be applied to the technical field of traffic engineering.

Description

technical field [0001] The invention belongs to the technical field of traffic engineering, in particular to a conflict-free pedestrian signal timing method at a two-phase intersection. Background technique [0002] In order to solve the problem of insufficient traffic capacity at intersections, scholars have broken through the limitations of traditional classic intersections and proposed some unconventional intersection designs, such as U-turns, series intersections, turning left by borrowing opposite exits, and turning left on plane roundabouts. , continuous flow intersections, etc., all have improved the traffic capacity of intersections to varying degrees. However, compared with traditional classic intersections, the operating rules of unconventional intersections are more complex, and the traffic information received by drivers has increased significantly, making it more difficult for drivers to observe the movement of pedestrians at intersections, which is likely to po...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08G1/07
CPCG08G1/07
Inventor 杨璐胡晓伟王健宋浪
Owner HARBIN INST OF TECH
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