The safety of evaluation ride being related to the chains of designing,manufacturing,running,inspecting and maintaining,the index system of amusement ride which includes the all chains of life of amusement ride was proposed. With the fuzzy method,the evaluation factors,the evaluation results and the weights were described. The model and the process of multilevel comprehensive safety evaluation were constructed. The system of fuzzy comprehensive safety evaluation was developed with the Object-oriented technology and tool. An eval...