Zhangzhangchang Railway starts from Hanjiang District of Chongqing City, passing through Xianfeng County and Laifeng County of Hubei Province, Longshan County, Yongshun County, Sangzhi County, Zhangjiajie City and Cili County of Hunan Province, and then often Taoyuan County and Dingcheng District of Deshi City. , arrived at Changde Railway Station. The total length of the railway planning line is 340 kilometers. It is a national first-class two-lane electrified railway with passenger and cargo lines. The design speed of the line is 200 kilometers per hour.