Highway traffic jam locating and searching method

A road traffic and point positioning technology, which is applied in the direction of road vehicle traffic control system, traffic flow detection, traffic control system, etc., can solve problems such as difficulty in locating traffic jam points.

Active Publication Date: 2014-09-17
BEIJING AEROSPACE FUDAO HIGH TECH
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  • Abstract
  • Description
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Problems solved by technology

[0008] Therefore, in order to solve the problem of difficult location of traffic jams, the present i...

Method used

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  • Highway traffic jam locating and searching method
  • Highway traffic jam locating and searching method

Examples

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Embodiment

[0057] The 2003-kilometer to 2015-kilometer section of the Shenhai Highway is 12 kilometers long, and it is a continuous long downhill, with large slopes, many curves, and narrow road surfaces, which are prone to traffic accidents. The road traffic jam location method designed by the present invention is used in the management platform, and information collection is realized through video monitoring. During the project test, a pair of high-definition night vision PTZ cameras were set up at intervals of about 1,000 meters for video surveillance on this road section (covering A\B roads). The monitoring range is 1000 meters to the left and right, and each high-definition camera corresponds to a video detector for automatic video analysis (the detection area is 300 meters to the left and 300 meters to the right).

[0058] Under good weather conditions, the monitoring platform only needs to use the congestion area search method in the highway traffic jam search and location method ...

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Abstract

The invention discloses a highway traffic jam locating and searching method which is implemented on the basis of monitoring systems arranged on the way. The method includes jam area searching and jam point locating and searching. As for a monitoring system which is visual and can fully monitor road situations between two monitoring points, the jam area searching mode is adopted. As for a monitoring system which is visual but can not fully monitor the road situations between the two monitoring points and a non-visual monitoring system, the jam point locating and searching mode is adopted. The jam point locating and searching mode includes the steps that traffic flow data of multiple monitoring points of the upstream of the minimum traffic flow obtained through the monitoring system are fitted into an upstream flow curve; traffic flow data of multiple monitoring points of the downstream of the minimum traffic flow are fitted to form a downstream flow curve; the intersection of the two curves is obtained to serve as a jam point. By means of the method, specific positions of traffic jams and accidents and particularly blind areas between the monitoring points can be accurately located, and adverse effects of rainy and snowy days can be overcome.

Description

technical field [0001] The invention belongs to the technical field of traffic control, in particular to early warning processing of traffic accidents, and specifically to a method for positioning and searching road traffic jams. Background technique [0002] Traffic jams seriously affect people's normal travel and work efficiency. From a statistical point of view, the cause of traffic jams is generally that there is a large amount of traffic in the area, especially traffic accidents. A traffic accident refers to an event in which a road vehicle causes personal injury or death or property damage due to fault or accident on the road. All over the world, road traffic accidents have become a major public hazard to society. Traffic accidents usually cause road blockage and poor traffic. If the traffic management platform can know the location of the blockage in time, it can judge that there may be hidden dangers of accidents in the area or that it has already occurred, and the ...

Claims

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Application Information

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IPC IPC(8): G08G1/01G08G1/065
Inventor 曹天扬申莉赵世亮
Owner BEIJING AEROSPACE FUDAO HIGH TECH
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