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Method of controlling priority signal for right-turning vehicles on straight-going and right-turning shared lane at intersection

A signal control, right-turn vehicle technology, applied in the direction of control traffic signals, etc., can solve problems such as hidden traffic safety hazards and low efficiency, and achieve the effect of improving traffic efficiency, increasing traffic time, and reducing conflicts.

Inactive Publication Date: 2015-03-11
南京春宇建设工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Even if the green light is released with the straight-going vehicle, it will conflict with pedestrians and bicycles going straight in the same direction, posing traffic safety hazards and inefficiency

Method used

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  • Method of controlling priority signal for right-turning vehicles on straight-going and right-turning shared lane at intersection
  • Method of controlling priority signal for right-turning vehicles on straight-going and right-turning shared lane at intersection
  • Method of controlling priority signal for right-turning vehicles on straight-going and right-turning shared lane at intersection

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Assuming that the signal period of a four-phase intersection is 100s, the time for going straight north-south and east-west is both 27s, the time for turning left is 17s, and the time for a yellow light is 3s.

[0039] East (E) West (W) South (S) North (N) V(km / s) 20( V E ) 20( V W ) 18( V S ) 18( V N ) L(m) 38（ L E ） 38（ L W ） 40（ L S ） 40（ L N ）

[0040] According to the geometric shape of the intersection, set the diversion line for left turn, and then leave a safety distance of 2 meters according to the line shape of the diversion line, and set the straight-going waiting area at the south entrance. And set up a pre-= signal light beside the stop line of the south entrance road, such as figure 1 , 2 shown.

[0041] Such as image 3 Shown: Compute the phase difference between the and signal light and the main signal light:

[0042] T S =40 / 5-2=6s, that is, the time when the rear vehicle of the east-west straig...

Embodiment 2

[0048] Assuming that the signal period of a three-phase intersection is 75s, the time for going straight from east to west and turning left is 22s, the time for north-south traffic is 22s, and the time for amber lights is 3s. And because of the three-phase intersection, there is no independent left-turn phase in the north-south direction, so the waiting area cannot be set in the east-west direction

[0049] The speed V of each imported vehicle passing through the intersection and the distance L to the conflict point are as follows:

[0050] .

[0051] According to the geometric shape of the intersection, set the diversion line for left turn, and then leave a safety distance of 2 meters according to the line shape of the diversion line, and set the straight-going waiting area at the south entrance. And set up a signal light next to the parking line at the south entrance, such as figure 1 and figure 2 shown.

[0052] Such as Figure 4 as shown, Compute the phase differ...

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PUM

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Abstract

The invention discloses a method of controlling a priority signal for right-turning vehicles on a straight-going and right-turning shared lane at an intersection. A left-turning guide line is arranged at the entrance of each intersection; a straight-going waiting area of a straight-going and right-turning shared lane is set in the front of the straight-going and right-turning shared lane at the intersection; a group of predicting signal lamps for the straight-going waiting area of the straight-going and right-turning shared lane are arranged near the stop line of the entrance having the straight-going waiting area of the straight-going and right-turning shared lane in the front and are used for controlling motor vehicles on the straight-going and right-turning shared lane to enter the waiting area; after straight-going vehicles on an intersection lane completely pass over a conflict point at the right crossing point with the waiting area of the straight-going and right-turning shared lane in the front, vehicles on the straight-going and right-turning shared lane enter the waiting zone; the main signal lamp is provided with an independent left-turning phase; the phase release sequence of the main signal lamp is straight-going prior to left-turning, so that right-turning vehicles are prior to cross the intersection; and right-turning vehicles can cross the intersection when left-turning vehicles on the intersection lane are released; therefore, the passing efficiency is improved and the delay time is reduced; no pedestrians and bicycles interfere with the running of the vehicles at this moment, so that the traffic safety is improved.

Description

technical field [0001] The invention belongs to the field of urban road traffic control, and in particular relates to a signal control method in which straight-going vehicles and right-turning vehicles share an entrance lane at an intersection and right-turning vehicles can pass preferentially. Background technique [0002] The number of cars is increasing, and the problem of traffic congestion is becoming more and more serious. How to use limited road resources reasonably and efficiently has become one of the important measures to solve road congestion. At urban road intersections, when the right-turning traffic volume is small or the space resources at the intersection are limited, straight-going motor vehicles and right-turning shared entrance lanes (straight right lanes) are often used. This is good for straight-going vehicles, which can increase the traffic capacity of straight-going vehicles and reduce the delay of straight-going vehicles, but it will significantly red...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/07
CPCG08G1/07
Inventor 张鹏韩烁常玉林汪小渟宋乐
Owner 南京春宇建设工程有限公司
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