Traffic abnormity identification method and system based on travel time evolution, and storage medium

A technology of travel time and abnormal identification, which is applied in the traffic control system of road vehicles, traffic control system, traffic flow detection, etc., can solve the problem of difficult identification of long-term abnormal status of the traffic system, and achieve the effect of improving the recognition accuracy

Active Publication Date: 2020-05-22
SUN YAT SEN UNIV
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Problems solved by technology

Therefore, the short-term static travel time may be difficult to identify the long-term abnormal state of the traffic system as the judgment and analysis index of traffic anomalies.

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  • Traffic abnormity identification method and system based on travel time evolution, and storage medium
  • Traffic abnormity identification method and system based on travel time evolution, and storage medium
  • Traffic abnormity identification method and system based on travel time evolution, and storage medium

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Embodiment Construction

[0057]The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. For the step numbers in the following embodiments, it is only set for the convenience of illustration and description, and the order between the steps is not limited in any way. The execution order of each step in the embodiments can be adapted according to the understanding of those skilled in the art sexual adjustment. Moreover, it should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined arbitrarily with each other.

[0058] refer to figure 1 , the embodiment of the present invention is used to monitor the state of the traffic system in real time through historical floating car data, and identify abnormal traffic events in the entire system at the road section and road network scale. This embodiment provides a traffic anomaly based on travel time e...

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Abstract

The invention discloses a traffic abnormity identification method and system based on travel time evolution, and a storage medium. The method includes: acquiring floating vehicle data, constructing atravel time distribution model and performing solving, then calculating an exponential weighted moving mean value and generating an exponential weighted moving mean value control chart, and finally conducting traffic abnormity identification through the exponential weighted moving mean value control chart. According to the invention, the floating vehicle data is fully utilized, meanwhile, the travel time distribution model is constructed and the exponential weighted moving mean value is calculated, and then the exponential weighted moving mean control chart is generated, so that a dynamic evolution process of the traffic state of a single road section or the whole system can be identified, an abnormal traffic event in a traffic network can be effectively identified, and the identificationaccuracy is greatly improved. The method can be widely applied to the traffic field.

Description

technical field [0001] The present invention relates to the technical field of traffic abnormality event identification, in particular to a traffic abnormality identification method, system and storage medium based on travel time evolution. Background technique [0002] The efficient and stable operation of the transportation system not only meets the travel needs of travelers and ensures the travel efficiency of travelers, but also drives the development of various industries to a certain extent and stimulates the urban economy. However, under actual conditions, the transportation system may have problems such as low efficiency and severe congestion. These problems may be caused by internal problems in the transportation system, such as network design defects, unreasonable control measures, or external disturbances, such as Traffic accidents, extreme weather, road alterations, or major gatherings. These problems often reduce the operating efficiency of the road traffic net...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/01
CPCG08G1/0112
Inventor 胡胜钟任新黄文滔谢秀霞李绍状詹志
Owner SUN YAT SEN UNIV
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