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Traffic microscopic simulation based urban grade crossing signalized intersection optimization method and system

A micro-simulation, plane signal technology, applied in the field of traffic management, can solve problems such as the inability to achieve comprehensive assessment of the traffic environment at the intersection, and the lack of consideration for the comprehensive optimization of multiple control strategies at the intersection.

Inactive Publication Date: 2015-05-13
SHANGHAI JIAO TONG UNIV
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AI Technical Summary

Problems solved by technology

However, this technology can only realize the effective evaluation of the traffic signal control strategy at the intersection, and cannot realize the comprehensive evaluation of the traffic environment at the intersection, and lacks consideration for the comprehensive optimization of multiple control strategies at the intersection.

Method used

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  • Traffic microscopic simulation based urban grade crossing signalized intersection optimization method and system
  • Traffic microscopic simulation based urban grade crossing signalized intersection optimization method and system
  • Traffic microscopic simulation based urban grade crossing signalized intersection optimization method and system

Examples

Experimental program
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Embodiment 1

[0035] like figure 1 As shown, this embodiment specifically includes the following steps:

[0036] 1) Obtain information related to the intersection (such as: land use around the intersection, channelization settings at the intersection, signal timing information at the intersection, traffic capacity at the intersection and delay of each approach road, traffic flow in each direction of the intersection and heavy vehicles ratio, intersection traffic control information), from the alternative database (mainly including intersection channelization design, such as changing road geometry, widening lanes, setting special lanes or priority lanes, setting tidal lanes, setting traffic islands, setting left-turn waiting Traffic area, etc., signal timing optimization, implementation or cancellation of traffic control measures, such as speed limit, right turn restriction, U-turn prohibition, etc.) to select and optimize alternatives;

[0037] 2) Take the optimization option as the test f...

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Abstract

Provided are a traffic microscopic simulation based urban grade crossing signalized intersection optimization method and system. The traffic microscopic simulation based urban grade crossing signalized intersection optimization method comprises the steps of screening and optimizing an alternative item from an alternative item database by obtaining intersection relevant information; then applying uniform design to arrange an experiment, wherein intersection control delay serves as influence, and the alternative item serves as a factor; finally establishing an intersection simulation model to perform simulation experiment and obtaining an optimization scheme most effective in master control delay. The shortcoming of a traditional optimization mode relying on experience is overcome by utilizing systematicness of a uniform design mathematical model and controllability of analogue simulation, optimized alternative items are combined, and combination effects are compared to obtain a comprehensive optimization scheme systemically and scientifically reducing intersection control delay.

Description

technical field [0001] The present invention relates to a technology in the field of traffic management, in particular to a method and system for optimizing urban plane signalized intersections based on traffic microscopic simulation. Background technique [0002] The intersection is a key node of the urban traffic network, and its traffic management level is of key significance to the overall efficiency of the network. At present, the optimization of the traffic organization and management of urban level signalized intersections is mainly reflected in maximizing the traffic capacity of the original intersections and reducing traffic delays by changing the traffic signal control scheme and the graphic design form of the intersections. [0003] After searching the prior art, it was found that the Chinese Patent Document No. CN102915636A was published (announced) on 2013.02.06, disclosing a system and method for testing the comprehensive performance effectiveness of traffic si...

Claims

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Application Information

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IPC IPC(8): G08G1/07G06F17/50
CPCG06F30/367G08G1/07
Inventor 孙健张颖陈书恺薛睿关士托
Owner SHANGHAI JIAO TONG UNIV
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