With the continuous advancement of urbanization,the urban expressway network system has been continuously improved,and the requirements for the traffic function of expressway interchange nodes have been increasing.It is particularly important to scientifically and economically select the interchange scheme combined with the current boundary conditions and limiting factors and fully considering the factors such as social and economic development,land use and road network.In this regard,this paper takes the interchange node scheme of Jusong Avenue and Xiaoya Road in Yichang City as an example.Through the analysis of the construction conditions,planning conditions and long-term traffic flow of the interchange node,combined with the characteristics of the loop line traffic,it puts forward the functional positioning and design ideas of the interchange node,and makes scientific and reasonable deduction and comparative analysis of the interchange node schemes,so as to provide reference for similar engineering.
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