Traffic signal priority and control method of BRT

Bus rapid transit(BRT) is an effective way to improve urban traffic status. Traffic signal priority is an important technique to increase the efficiency of BRT. In view of complexity of coordinated control with signal priority, this paper presents a strategy of key parameters selection, a control method of signal priority based on fixed period and a priority appraising system. Optimization of signal control parameters and bus dispatch parameters is realized using genetic arithmetic for different periods to obtain general control effect of BRT and other vehicles. Compared with several other control methods, priority effect of this method is demonstrated by the VISSIM simulation of the Beijing South-Center Corridor of China.