Optimization method and device for lane change space of city expressway ramp area

A space and ramp technology, applied in the Internet field, can solve problems such as expressway congestion, inaccurate lane change space, inaccurate ramp area traffic capacity, etc., achieve scientific and perfect simulation models, and reduce delays or congestion.

Active Publication Date: 2018-01-09
BEIJING UNIV OF TECH
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Problems solved by technology

[0004] However, the above two methods have their own limitations: only the structure, length, vehicle speed and other factors of the ramp are considered. The traffic capacity of the ramp area obtained by the two methods is not very accurate, which in turn makes the lane changing space obtained based on the traffic capacity of the ramp area inaccurate, which makes the expressway designed based on the lane changing space easy to cause congestion

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  • Optimization method and device for lane change space of city expressway ramp area
  • Optimization method and device for lane change space of city expressway ramp area
  • Optimization method and device for lane change space of city expressway ramp area

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[0029] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are the Some, but not all, embodiments are invented. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0030] The flow chart of the method for optimizing the lane change space in the urban expressway ramp area provided by the embodiment of the present invention, the method includes: based on the expressway simulation model obtained by inputting the modeling parameters into the VISSIM software, by setting different off-ramp ratios, different main single-lane traffic volum...

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Abstract

The invention provides an optimization method and device for the lane change space of a city expressway ramp area. The method comprises the following steps that: on the basis of an expressway simulation model obtained in a way that a modeling parameter is input into VISSIM software, setting different ramp exiting ratios, different main road one-lane car traffic volumes and different lane change spaces to obtain an optimal lane change space corresponding to each lane existing ratio and an optimal lane change space corresponding to each main road one-lane car traffic volume. By use of the optimization method for the lane change space, the expressway designed on the basis of the optimal lane change space enables vehicles to successfully pass in an exit lane area, and delay or congestion can be reduced.

Description

technical field [0001] The present invention relates to the field of Internet technologies, and more specifically, to a method and device for optimizing lane changing space in ramp areas of urban expressways. Background technique [0002] As the main skeleton and main artery of the urban road network, urban expressways have played a huge role in providing large-capacity traffic corridors, shielding transit traffic, adjusting the urban road network structure, and optimizing land use layout. social gain. However, due to the continuous high-speed growth of traffic demand, this benefit is being weakened day by day, and the traffic safety and traffic congestion problems of urban expressways are becoming more and more serious. Congestion on expressways will seriously affect the efficiency of urban traffic, and random and disorderly lane changes, especially near exit ramps, will seriously affect the traffic capacity of urban expressways. [0003] At present, there are mainly two ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50G08G1/01G08G1/065E01C1/00
Inventor 李海舰荣建张子涵何鹏邦常鑫
Owner BEIJING UNIV OF TECH
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