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An emergency evacuation-oriented main line ramp control method and system

A technology of emergency evacuation and control methods, which is applied in the control field of trunk ramps and can solve problems such as lack of systematic guidance

Inactive Publication Date: 2020-07-31
NORTH CHINA UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] As far as the current research and application status is concerned, there is still a lack of more scientific and specific control methods for the main ramp under emergency evacuation
Mainline ramp control measures are mostly determined by experience, lacking systematic guidance

Method used

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  • An emergency evacuation-oriented main line ramp control method and system
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  • An emergency evacuation-oriented main line ramp control method and system

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Embodiment Construction

[0024] In order to make the purpose and technical solutions of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings of the embodiments of the present invention. Apparently, the described embodiments are some, not all, embodiments of the present invention. Based on the described embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0025] Those skilled in the art can understand that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It should also be understood that terms such as those defined in commonly used dictionaries should be und...

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Abstract

The invention provides an emergency evacuation oriented trunk ramp control method and a system thereof. The method and the system determine a corresponding ramp control strategy in real time accordingto the evacuation state of a trunk traffic network based on a trunk ramp control calculation model. Therefore the method and the device do not require data prediction. Only through real-time evacuation data, the vehicle entering rate of each inlet ramp in the trunk traffic network and the flow of each road section in the trunk traffic network can be updated according to the ramp control strategy,and a clearing time length of the trunk traffic network is calculated and output. The emergency evacuation oriented trunk ramp control method and the system thereof have advantages of simple calculating step, practical control mode, no requirement for establishment of an optimizing model, and low calculation amount. The emergency evacuation oriented trunk ramp control method and the system thereof further perform functions of reducing system clearing time, and endowing high-risk population of relatively high passing right as possible through setting the ramp control strategy.

Description

technical field [0001] The present invention relates to the field of traffic, in particular to the control technology for main line ramps. Background technique [0002] Floods, earthquakes, hurricanes, nuclear accidents, terrorist attacks and other disasters threaten the safety of human life and property. To protect people from disasters, timely evacuation of affected people to safe areas is usually the best measure. Prediction of evacuation demand and evacuation conditions is crucial to the formulation and smooth implementation of emergency plans. Most existing emergency evacuation models require complete demand data and detailed traffic state information, which will change dynamically during the evacuation process, but it is almost impossible to accurately predict time-varying evacuation demand and evacuation conditions under emergency conditions . In this case, it is of great significance to use only the current real-time information to formulate the arterial ramp cont...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08G1/01
Inventor 吴文祥谭塈元郭伟伟王志建
Owner NORTH CHINA UNIVERSITY OF TECHNOLOGY
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