Study on the Scheme of Three Branch Interchange

In cities with a "ring+radiations" road network structure, a three Branch intersection is formed at the connection between the inner ring and radiations. Common three branch interchanges include T-shaped, Y-shaped, trumpet shaped, leaf shaped, pear shaped interchanges, etc. Shenyang City plans a "two verticals and three horizontals+four rings+seventeen radiations" urban expressway network. This article takes the three-branch intersection formed by Chongshan Road, Tawan Street, and Yuanjiang Street in Shenyang City as an example to analyze its traffic characteristics and predict traffic demand. Based on this, three interchange selection schemes are proposed, and recommended schemes are obtained through multi angle comparison. This article provides ideas for the selection of three branch interchanges. In addition, because this project is located in the built-up area and the surrounding land is tight, this article also explores the problems and solutions of the overpass renovation in the built-up area, providing reference for similar projects.