Intelligent system is internationally recognized as the fundamental way of a comprehensive solution to the field of transportation。Establishing an intelligent,safe,convenient,high speed,comfortable and friendly environmental transport system has become a development trend.The article explains the meaning of urban public transport and the new trend of building an urban intelligent transportation system,and analyzes the current situation and existing problem and reasons of urban traffic in great depth in BeiJing,meanwhile,also discusses the future trends of intelligent transport system. <<