On June 6, the launch ceremony for the first shield tunneling machine, "Pioneer 1," of the Phase I project of Changchun Rail Transit Line 5 was held at the construction site of the Southwest Hub Station on Line 5, marking that the Phase I project of Rail Transit Line 5 has officially entered the shield tunneling construction stage. The Phase I project of Rail Transit Line 5 has a total length of 19.657 km and comprises 18 stations, including 8 transfer stations. It starts at the Southwest Hub Station at the intersection of Silicon Valley Street and Zhuoyue Street and ends at Dongda Bridge Station, with the line laid along Silicon Valley Street, Qianjin Street, Yan'an Street, Huxi Road, Hongqi Street, Jianzheng Road, and Changchun Street.