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Design method for signalized intersection turn-around area with two left turning lanes

A technology for left-turn lanes and design methods, which is applied in the control of traffic signals, design optimization/simulation, roads, etc., and can solve problems such as reduced traffic capacity, waste of lane time resources, and mutual interference between U-turn traffic and left-turn traffic. , to achieve the effect of scientific setting, accurate calculation of traffic capacity, good traffic design and optimization services

Active Publication Date: 2017-05-31
SHANDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0002] At present, there is no scientific and feasible method for setting the U-turn area on the double left-turn lane at the intersection of urban roads. It is all set by traffic designers based on experience. Waste of time resources and reduced traffic capacity

Method used

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  • Design method for signalized intersection turn-around area with two left turning lanes
  • Design method for signalized intersection turn-around area with two left turning lanes
  • Design method for signalized intersection turn-around area with two left turning lanes

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Embodiment Construction

[0041] The present invention will be further described below in conjunction with accompanying drawing and specific embodiment:

[0042] By analyzing the interaction mechanism of left-turn and U-turn traffic and its influence on the lane selection of left-turn vehicles, the present invention establishes a capacity calculation model for double left-turn lanes with U-turn areas, and determines the optimal traffic efficiency The optimal location of the double left-turn lane U-turn area makes the interaction between the left-turn traffic flow and the U-turn traffic flow the least, and the utilization rate of lane resources is the highest.

[0043] The effective green light time in the present invention refers to the time displayed by the green light minus the lost time. Two-lane capacity is the maximum number of vehicles that can pass in one hour in two left-turn lanes under current road, traffic, control, and environmental conditions. The vehicle lane length refers to the space l...

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Abstract

The invention discloses a design method for a signalized intersection turn-around area with two left turning lanes. The design method is characterized in that in the process of determining the capacities of the two left turning lanes, influences of the running characteristics of turn-around traffic flow on the lane selection behavior of follow-up left turning traffic flow are draw into full consideration, a capacity computation model for the two left turning lanes with the turn-around area is established, then in combination with the actual running characteristics of the intersection, model establishment and simplification are conducted, the optimal position setting of the turn-around area is determined to achieve the purpose of maximizing the comprehensive capacity of the two lanes, and computation of the capacity is more accurate under the situation.

Description

technical field [0001] The invention relates to the field of traffic planning and design, in particular to a design method for a U-turn area at a signalized intersection with double left-turn lanes. Background technique [0002] At present, there is no scientific and feasible method for setting the U-turn area on the double left-turn lane at the intersection of urban roads. It is all set by traffic designers based on experience. Waste of time resources and reduced traffic capacity. Contents of the invention [0003] Aiming at the deficiencies of the prior art, the invention provides a design method for a U-turn area at a signalized intersection with double left-turn lanes. [0004] The present invention comprises the following steps: [0005] A) First establish a capacity calculation model for double left-turn lanes with a U-turn area [0006] Steps for establishing a capacity calculation model for double left-turn lanes with U-turn areas, including: [0007] a) First ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/08G06F17/50E01C1/02E01C1/00
CPCE01C1/002E01C1/02G06F30/20G08G1/08
Inventor 孙锋孙立焦方通王晓原赵菲孙绍伟张倩
Owner SHANDONG UNIV OF TECH
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