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

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 improv