Method and system for detecting road traffic incidents

A technology for event detection and road traffic, applied in the field of traffic management, can solve the problems of event detection impact of statistical periodic detectors, distortion of judgment results, information lag, etc., and achieve the effect of improving accuracy and scientific decision-making.

CN101540101AInactive Publication Date: 2009-09-23SHANGHAI BAOKANG ELECTRONICS CONTROL ENG
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2009-09-23
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a method and a system for detecting road traffic incidents. The method and the system select traffic occupancy parameters as main parameters of traffic incident detection, and judge whether the traffic incidents exist or not by utilizing the posture that the traffic occupancy parameters basically form a linear growth with the improvement of the traffic crowding degree and using speed parameters as an auxiliary so as to improve the accuracy of the traffic incident detection and the scientificity of decision. The method comprises the following steps of: (1) through the sampling analysis of traffic parameters of a road section, setting a traffic occupancy differential threshold value and a speed threshold value of the road section; and (2) acquiring the traffic parameters of the road section in real time, and judging whether the traffic incidents happen or not by comparing the change of the traffic occupancy with the time with the traffic occupancy differential threshold value and the speed parameters with the speed threshold value.
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Description

technical field

[0001] The invention relates to a traffic management method and system, in particular to a road traffic incident detection method and system. Background technique

[0002] With the rapid development of the urban economy and the sharp increase in car ownership, the demand for urban road traffic has increased significantly, resulting in road traffic congestion and traffic incidents. For this reason, how to conduct statistical analysis based on traffic data collected by video or traffic detectors Obtaining accurate traffic event information has become a common concern of the majority of traffic participants or managers. Because accurate traffic event information is provided to travelers in real time through traffic broadcasts or traffic guidance screens, etc., it can induce them to choose reasonable travel modes and routes, and at the same time provide support for traffic decision-making analysis, which can improve traffic management. It provides efficient, saf...

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Embodiment Construction

[0032] In order to make the purpose and features of the present invention more obvious and comprehensible, the specific implementation manners of the present invention will be further described below in conjunction with the accompanying drawings.

[0033] First, the physical meaning of the traffic occupancy rate is explained to facilitate the understanding of the following embodiments. The traffic occupancy rate is the ratio of the sum of the time of the vehicle passing the traffic detector to the total statistical time within a period of time, for example, within 5 minutes , a total of 5 vehicles have passed, and the time it takes to pass the detector is 5 seconds, 10 seconds, 15 seconds, 20 seconds, and 25 seconds, then the traffic occupancy rate is (5+10+15+20+25) / 300*100 % = 26.67%.

[0034] Please refer to figure 1 , which is a schematic flowchart of a road traffic event detection method provided by an embodiment of the present invention. The method utilizes traffic par...