 Among them, the main line (Jiekou Town to Economic Development Zone) is a main rail transit line in Tianshui City that crosses the east-west main urban area, connecting the main urban areas of Qinzhou and Maiji districts, while taking into account the main towns and economic development zones around the main urban area.Line 2 is a north-south line connecting Qinzhou District and Sanyangchuan.It mainly undertakes passenger transportation tasks in the main urban area of Tianshui City and Sanyangchuan New Area, while taking into account the role of public transportation in Sanyangchuan New Town.