A traffic congestion detection method based on the collected data bus

The present invention discloses a method for detecting the bus traffic congestion data collection, including those based on: S10, collect traffic data and periodically uploaded to the data center; vehicle position information and road information to obtain the matched link information in which the vehicle will travel and vehicle data is stored together with flag information to the current traffic data set X; S20, calculating the average speed of each vehicle, and determining the vehicle running state of the vehicle to obtain non-smooth driving set C; S30, determines whether each link of all the vehicles are smooth driving of the vehicle is non-set C, if the link is congested sections of the carriageway into registration set S; and S40, acquires the video image is positioned on a road vehicle in the set S quasi road traffic congestion, the acknowledgment received through manual judging sections the congestion, road congestion will be recognized as a congested road sections added to the set B. The present invention discloses a traffic congestion detection system bus of the data acquisition.