A worker uses a device to direct tunneling work at the construction site of Guiyang Metro Line 3. [Photo/gywb.cn]

Metro Line 3 (Phase 1) has a total length of 43.03 km and starts from Tongmuling (Party School of the CPC Guizhou Committee) Station, covering key functional areas and traffic hubs such as Huaxi Park, Huaguoyuan community, and Qianlingshan Park, ending at Luowan Station.