Abstract:Taking the city trunk road of Huanshan North Road (ecological park section) as an example, this paper introduces the functional orientation and main technical standards of the project, and determines the reasonable lane size through the traffic volume forecast. Combined with the actual construction conditions, this paper expounds in detail the selection of Trunk Road Forms, the general layout of important interchange nodes and ramps. This paper systematically introduces the peripheral influencing factors to be considered in the overall design of urban trunk roads in the built-up areas and the solving methods.