Development and simulation application of a dynamic speed dynamic signal strategy for arterial traffic management

A traffic management with dynamic speed guidance and dynamic signal timing (DSDS) is presented to optimize the arterial coordinated signal control system. Details are discussed including VMS positioning, guided speed calculation, signal timing adjustment and DSDS integration model This strategy provides the vehicles with a possibility of passing the intersections without stop through guiding them with necessary speed dynamically in the link segment and adjusting the signal timing of the preceding intersection according to vehicle detected data Thus the stopped delay of traffic flow can be impressively decreased VISSIM, a microscopic simulator is applied to develop simulation architecture as a test tool of this strategy. As a case study, Cao'an Highway, a suburban highway in Shanghai, is taken for simulation and evaluation. The preliminary assessment results show that: the improvement of the delay and number of stops is obvious and robust considering the driver behavior.