Abstract:For many years, Youxizhou Bridge, and its south and north bridge approaches are always one of the road sections with the traffic congestion in the urban area of Fuzhou. Taking the south bridgehead of Youxizhou Bridge in Fuzhou as an example, from the aspects of macroscopic road network function and micro node interweaving areas, the traffic improvement scheme of the south bridgehead of Youxizhou Bridge is studied. The functional separation improvement scheme and the combined area expansion scheme are proposed. The macro model and micro model of the traffic are used to carry out the simulation and demonstration. The optimal scheme is selected through the comprehensive comparison.