Yichang Expressway is the sixth longitudinal G55 Section of the Zhangjiajie-Changsha Expressway (G5513) of the Erguang Expressway connecting line of the National High-speed Network. The route starts at Zijiang Second Bridge in Yiyang City, Hunan Province and ends at Tanshuping, Deshan, Changde City, Hunan Province. The main line is about 73.1 kilometers long and has four lanes in both directions. Tanshuping to the south of Yuanshui Second Bridge in Changde City is the Changde connecting line of Yichang Expressway, which is about 5.2 kilometers in length, and is constructed according to the first-class highway standard. The whole line of the project adopts the standard construction of the first-class automobile special highway in the plain and hilly area. The subgrade width is 27 meters, two-way four-lane, asphalt concrete pavement, and the designed driving speed is 100 km/h. There are six ramp toll stations in Xingfu Canal, Yingfeng Bridge, Junshanpu, Taizimiao, Xiejiapu, Deshan and one Taizimiao service area (the right of operation is not vested in Yichang Company).
| Category | Vehicle Type | Number of persons approved | instruction |
|---|---|---|---|
| Class 1 | Micro, small | 9 | Passenger cars with a length less than 6000mm and an approved number of passengers not more than 9 people |
| Type 2 | Medium | 10-19 | Passenger cars with a length less than 6000mm and an approved number of (10-19) people |
| Class 3 | Passenger car train | - | - |
| Type 4 | Large | 39 | Passenger cars with a length not less than 6000mm and an approved number of passengers not more than 39 people |
| Category 5 | ≥40 | Passenger cars with a length of not less than 6000mm and an authorized capacity of not less than 40 people |
