Is it necessary to build a subway in Cao Xian County?

A subway will be built in Cao Xian County. According to relevant public information, as of February 13, 2023, the first phase of Jinan Rail Transit Line 9 was held at Peijiaying Station (project name). The first phase of Line 9 starts from the south bank of the Yellow River in the west, and ends in Huashan North Area, Huashan Area, Xindong Station Area and Licheng Jigang Area in the east. After the project is completed, promotional film shooting, promotional film shooting and corporate promotional film production will be connected in series.