Abstract:Taking the interchange node to be built of Metro Line 4, North Jinxing Road and Tengfei Road in Dazehu Area of Wangcheng District in Changsha City as the research object, according to the planning, previous design experience, department opinions and expert suggestions, and combined with the actual situation, four comparative schemes of bridge and tunnel are proposed for the main road expressway of Jinxing Road. After the comprehensive comparison and selection, the framing tunnel scheme is adopted, which is unanimously recognized by all relevant units. The reference and experience are provided for the subsequent municipal road, bridge, tunnel and subway interchanges.