An improved algorithm research of transit signal priority based on exponential smoothing method

Abstract

Transit Signal Priority (TSP) is a computer network control system. However, it is inaccurate to input traffic flow by the method of random distribution and analyze the delay. With communication technology developing precisely calculating the delay time of buses can be achieved. The kernel algorithm of TSP still has room for improvement. In this paper, the change rate of movement track of bus is studied under the condition of new communication technology. According to the characteristics of real-time monitoring data, the calculation model of average person delay was proposed by utilizing exponential smoothing method. A case study was conducted to validate the model results. Simulation results shows that this method effectively reduces average delay time of the travelers 20.9%.