Traffic incident road chain detecting and data filing method

The invention discloses a traffic incident road chain detecting and data filing method, and pertains to the technical field of intelligent transportation. The method comprises the following steps: acquiring an influenced road chain described by traffic incident test information, and acquiring upstream and downstream extended road chains of the influenced road chain; acquiring the road condition information of the first M sampling periods of the influenced road chain and the upstream and downstream extended road chains by taking the sampling periods to which a traffic incident belongs as the benchmark, wherein M is greater than 1; determining the road chain to which the traffic incident belongs according to the road condition information; and filling the road condition information of a data missing road chain according to the road condition information. According to the invention, for disadvantages of the current incident road chain judging and data filing method, according to spatio-temporal variation rules of upstream and downstream road chain traffic flows when the traffic incident occurs, a specific traffic incident road chain is determined, and filling is performed on the data missing road chain, so a release system of an intelligent transportation information system is perfected to provide complete road condition information for travelers, so that negative influences of the traffic incident on road conditions can be reduced.