Signal control of congestion lengths in a two-way traffic network

This paper studies a signal control method which controls congestion lengths in a two-way traffic network systematically. The signal control system of the congestion length is described by a nonlinear time-varying discrete dynamic system and synthesized by using the feedback control. A network control algorithm in which the three signal control parameters consisting of the cycle length, green split and offset are searched systematically so as to minimize the sum of congestion lengths in the traffic network is presented. From the comparison of congestion lengths between measurement values and simulation values, it is confirmed that the network control algorithm works effectively to reduce the congestion lengths in the traffic network