Design method for left turn non-motor traffic at continuous flow intersection

A design method and technology of motor vehicles, applied to control traffic signals, roads, buildings, etc., to achieve the effects of ensuring safety, reducing interference, and eliminating conflicts

Active Publication Date: 2018-08-14
UNIV OF SHANGHAI FOR SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 2. Conventional signal control intersection signal control
Therefore, the existing technology lacks a more scientific and reasonable design method for non-motorized vehicle traffic at continuous flow intersections, especially left-turning non-motorized vehicles

Method used

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  • Design method for left turn non-motor traffic at continuous flow intersection
  • Design method for left turn non-motor traffic at continuous flow intersection
  • Design method for left turn non-motor traffic at continuous flow intersection

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Embodiment 1

[0067] The geometric conditions of the continuous flow intersection in Embodiment 1 of the present invention, such as image 3 As shown, according to the traditional design, the left-turning non-motorized vehicles pass along the path F of the left-turned non-motorized vehicles at the main signal, and the conflict point G is formed with the self-directed and opposite straight-going motor vehicles. Using the method in the present invention, its space design and signal control are optimized, and compared with traditional design schemes. The design input parameters are: left turn and straight traffic demand at each fork, q i1 and q i2 , take 1000veh / h and 1500veh / h respectively; the maximum and minimum signal period length, C max and C min , taking 120s and 60s respectively; the minimum green light duration requirement for the main signal and the pre-signal, G imin and G p ijmin , take 10s; green light interval, I, take 4s; main signal and pre-signal single-lane saturated fl...

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Abstract

The invention relates to a design method for left turn non-motor traffic at a continuous flow intersection. The method is aimed at an intersection type which is the continuous flow intersection, the method is used for optimizing design of traffic path space and signal control of left turn non-motor traffic at the continuous flow intersection so as to eliminating conflicts between left turn non-motors and straight moving motor vehicles at a main signal position, and traffic capacity of the motor vehicles is improved on the basis of ensuring the safety of traffic; in an aspect of space design, astraight moving motor vehicle pre-stop line and a left turn non-motor vehicle crossing passageway are set at a pre-signal position of the continuous flow intersection according to the design method,a left turn non-motor vehicle lane is set between a motor vehicle exit lane and a left turn lane, and therefore a left turn non-motor vehicle passage space path is provided; in an aspect of signal control, control of the straight moving motor vehicle is increased at the pre-signal position, and a maximum vehicle throughput is an optimization goal; constraint conditions such as a phase sequence ofa signal phase, period duration, duration of each green light in all flow directions, saturation and the like are taken into consideration; a linear programming model is built for optimization.

Description

technical field [0001] The invention relates to a space and signal control design method of an intersection, more specifically, to a space and signal control design method of a continuous flow intersection for left-turn non-motor vehicle traffic. Background technique [0002] Level intersections are the bottleneck nodes of urban road traffic. In order to improve the traffic efficiency of intersections, an unconventional intersection called continuous flow intersection is proposed. In this design, a pre-signal is set upstream of the main signal, and the left-turn motor vehicle lane is moved to the left side of the motor vehicle exit lane, so that the conflict between the left-turn motor vehicle flow at the main signal and the opposite straight-going motor vehicle flow is transferred to the upstream pre-signal at the intersection, The conflict between the left-turning motor vehicle flow and the opposite straight-going motor vehicle flow at the main signal is eliminated, so tha...

Claims

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Application Information

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IPC IPC(8): G08G1/07E01C1/00E01C1/02
CPCE01C1/002E01C1/02G08G1/07
Inventor 赵靖姚佼徐海军韩印王嘉文梁士栋陈凯佳张传高航
Owner UNIV OF SHANGHAI FOR SCI & TECH
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