Intersection entrance lane shared through and left-turn variable lane pre-signal control method

A control method and pre-signaling technology, applied in the direction of traffic signal control, etc., can solve the problems of poor traffic capacity and low traffic efficiency, and achieve the effect of improving traffic capacity and overall traffic capacity

Inactive Publication Date: 2017-08-22
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem of low traffic efficiency and poor traffic capacity of the existing intersection entrance road, and propose a kind of intersection entrance road straight left shared variable lane pre-signal control method

Method used

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  • Intersection entrance lane shared through and left-turn variable lane pre-signal control method
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  • Intersection entrance lane shared through and left-turn variable lane pre-signal control method

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Experimental program
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specific Embodiment approach 1

[0021] Specific implementation mode one: the specific process of the pre-signal control method for a straight left shared variable lane at an intersection entrance road in this implementation mode is as follows:

[0022] Step 1: Prescribe the operating rules for pre-signal control vehicles on the second lane;

[0023] The second lane is the lane adjacent to the leftmost lane with the direction of traffic flow as the front;

[0024] The leftmost lane is the leftmost lane with the traffic flow direction as the front, and the leftmost lane is the first lane;

[0025] Step 2: Coordinate the timing of the main and pre-signals according to the phase timing of the main signal at the intersection;

[0026] Step 3: According to the speed limit value of the road, determine the position of setting the pre-signal lights, prompting lane change markings and traffic signs;

[0027] Step 4: According to the positions of the pre-signal light and the lane change markings, determine the time w...

specific Embodiment approach 2

[0032] Specific implementation mode two: the difference between this implementation mode and specific implementation mode one is: the operation rules of pre-signal control vehicles on the second lane are stipulated in the step one; the specific process is:

[0033] When the main signal is a left-turn pass, the pre-signal left-turn green light is turned on in advance, and the left-turn green light is turned on at the same time. The second lane is now a left-turn special lane. Straight vehicles cannot occupy the second lane. The second lane enters the intersection to complete the left turn; the vehicles waiting to turn left in the leftmost lane line up to pass through the leftmost lane or change lanes to the second lane to turn left and pass through the intersection. In addition, when the traffic volume is small, the vehicles on the first lane on the left can drive into the second lane and go straight ahead according to the pre-signal light, and then when the main signal turns le...

specific Embodiment approach 3

[0040] Specific embodiment three: the difference between this embodiment and specific embodiment one or two is: in the described step 2, according to the phase timing of the intersection main signal, coordinate the timing of the main and pre-signals; the specific process is:

[0041] The pre-signal has three light colors: straight traffic light, left turn traffic light and yellow light; the red and green lights in the straight direction are turned on a few seconds earlier than the red and green lights in the straight direction of the main signal, and the red and green lights in the left turn direction are also brighter than the main signal The red and green lights in the left turn direction are turned on several seconds in advance, and the periods of the main signal and the pre-signal are equal.

[0042] The pre-signal is divided into straight traffic lights and left-turn traffic lights, which are divided into two phases control: ① pre-signal turn left green light + pre-signal st...

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Abstract

An intersection entrance lane shared through and left-turn variable lane pre-signal control method is provided. The invention relates to a lane pre-signal control method and aims to solve a problem that a current intersection entrance lane is low in traffic efficiency and poor in traffic capacity. The method comprises the following steps of: 1, prescribing that a pre-signal controls a driving rule of vehicles on a second lane, wherein the second lane is a through lane adjacent to a leftmost lane, and the leftmost lane is a leftmost through lane; 2, coordinating the time of a main signal and the time of the pre-signal according to the phase time of the main signal at the intersection; 3, determining a position for arranging a pre-signal lamp, a prompt lane-changing sign line, and a traffic sign according to a road speed limit; and 4, determining the ahead switch-on time of a pre-signal through red light relative to a main signal through red light according to the position of the pre-signal lamp and the prompt lane-changing sign line; and determining the ahead switch-on time of a pre-signal through green light relative to a main signal through green light. The method is applied to the field of traffic engineering.

Description

technical field [0001] The invention relates to a lane pre-signal control method. Background technique [0002] In recent years, economic development has led to a rapid increase in the number of urban motor vehicles, and it is not uncommon for roads to be in short supply. As the intersection of urban road network nodes, it has become the key to restricting road traffic capacity. In order to improve the traffic capacity of intersections, scholars and practitioners in the field of transportation have proposed many optimization methods and improvement measures under limited road conditions, and achieved good results. [0003] For example, when there is a large amount of straight-going traffic at an intersection, but the road conditions are limited, the method of sharing the same lane for straight-going and right-turning vehicles is often used to improve the speed of straight-going vehicles at the intersection at the expense of the operating efficiency of some right-turning veh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/07
CPCG08G1/07
Inventor 杨龙海章锡俏吉文超朱晓艳李盟罗沂徐洪袁亚龙
Owner HARBIN INST OF TECH
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