School of transportation, Chongqing Jiaotong University

1. The importance and necessity of demand projects and the degree of connection between them and the municipality's major projects and key industries Chongqing's main urban areas are organized in groups. The characteristics of passageway traffic are obvious, and the efficiency of arterial road traffic affects the efficiency of urban traffic. Green wave of trunk road can improve the efficiency of urban traffic operation. It is of great significance to evaluate and optimize green wave of trunk road for traffic operation in Chongqing. At present, the main city traffic three-year action plan slow blocking security Cheong, is the focus of urban transport. 2. Technical breakthrough and innovation points of the demand project evaluation of traffic signal green wave scheme based on GPS and real-time floating car traffic operation; we can find the intersection where the traffic control efficiency can be improved and put forward the optimization scheme. Innovation 1: traffic control evaluation and optimization of floating cars based on GPS 2: efficiency evaluation software of green-wave coordination of trunk line under floating cars