Method for compensating real time traffic information data

The invention relates to a data compensation method for real time traffic information, which comprises the following steps: optimizing a road net according to the traffic information generated by real-time processing; conducting the abnormal data rejection to the traffic information generated by real-time processing, so as to obtain data which complies with current traffic tendency; choosing historical data which complies with the change of the traffic tendency from a historical database according to the obtained data of real-time traffic tendency to be taken as an auxiliary information source for compensating vacant information; taking a vacant road chain road as a center to construct a compensatory area according to the auxiliary information source and the road net after being optimized, taking the area as a unit to conduct compensatory calculation to road chain which is not covered with traveling track information; determining a filling mode according to the road chain role of a vacant road chain and the number of the vacant road chain in the compensatory area, thereby accomplishing the compensation. The data compensation method fully utilizes the characteristic of the change of traffic flow tendency to develop the information in the historical database to realize the real-time calculation of large-scale data, and the data compensation method has the advantages of high computational efficiency and versatility which is not restricted by areas.