the project crosses the expressway around the city and the Chengdu-Mianyang-Leshan passenger dedicated line to the south, uses the existing logistics Avenue, Huangjia Avenue and Xihanggang Avenue to lay viaducts after passing through the east side of Shuangliu Airport, and successively crosses several municipal roads such as Dajian Road, Muhua Road and Zhenggong Road. The total length of this section is 22.76 kilometers. It includes the main line bridge from the city to the airport, the main line bridge from the airport to the people's university, the hub around the city and the airport.
