摘要: |
Coordination of traffic signals is one of the most effective methods to improve the quality of traffic control on an artery. Properly coordinated traffic signals can effectively minimize delay and number of stops, increase travel speed, and reduce the number of collisions. MULTIBAND and AM-BAND are well known and widely used methods for arterial traffic control. The optimum solution provides the ability to travel without stops for most individual vehicles, whereas buses stopping at bus stops may experience excessive delays. This paper presents BUS-MULTIBAND and BUS-AM-BAND methods formulated as mixed-integer linear programs that solve the signal coordination problem for passenger cars and public transport vehicles simultaneously. The optimal signal coordination plans for general and transit vehicles were computed, simulated, and compared with signal plans generated for only general vehicles. Simulation results indicate that traffic signal coordination plans generated by the proposed methods can provide significant benefits for buses and, at most, small losses for general vehicles compared with plans generated by MULTIBAND and AM-BAND. |