The method of traffic congestion identification and spatial and temporal dispersion range estimation

In order to improve the efficiency of traffic congestion detection algorithm, this paper proposes a method for application in traffic congestion identification and dispersion range estimation using gain methodology. The traffic data containing volume, speed and occupancy for testing were obtained from a real section and simulation system. The performance of automatic congestion identification (ACI) method and spatial-temporal dispersion range estimation (ACDE) method are evaluated using real and simulation data. The experimental results indicate that the proposed ACI method produced satisfactory DR with deemed acceptable FAR using traffic data of three time scales. The ACDE method is suitable for estimating spatial-temporal dispersion range and produce satisfactory average accuracy.