Sharing the right of way with tram and pedestrians leads the collision system becoming the vital part of tram. Two sets of asynchronous sensors are fused

three-grade sound and light alarm are set on show end to insure the safety and reliability of obstacle detection. In order to improve the comfort evaluation index as well as safety index in driving. In controller part

design two sets of fuzzy control rules and compare output. Control result is simulated and simulation result shows that fuzzy control meets the basic needs of tram braking intensely well.