| Other Name: | Gaochun line Nanjing–Gaochun intercity railway Phase 2 Ninggao intercity railway Phase 2 |
| Type: | Rapid Transit |
| Status: | In operation |
| Locale: | Jiangning, Lishui, and Gaochun districts Nanjing, Jiangsu |
| Stations: | 6 |
| Operator: | Nanjing Metro |
| Character: | Elevated |
| Linelength: | 52.41NaN1 |
| Tracks: | 2 |
| Map State: | collapsed |
Line S9 is a north–south suburban metro line in the Nanjing Metro system, which opened on December 30, 2017.[1] It connects to Line S1 at and crosses Shijiu Lake on a long bridge between and .[2]
Line S9 also serves as the second stage of the Nanjing–Gaochun Intercity Railway, with Line S1 serving as the first stage. In June 2019 a few express trains started operating during rush hour, running non-stop between and .[3]
| Services | Station Name | Connections | Distance | Location | ||||
|---|---|---|---|---|---|---|---|---|
| L | Ex | |||||||
| ● | ● | 0.000 | 0.000 | Jiangning | ||||
| ● | || | | | 10.003| 10.003|-|align="center"|●|align="center"||| | | | 7.374| 17.377| rowspan="2" | Lishui|-|align="center"|●|align="center"||| | | | 11.219| 28.596|-|align="center"|●|align="center"|| | 16.912 | 45.508 | Gaochun | ||||
| ● | ● | 6.232 | 51.740 | |||||
Line S9 uses car Class B aluminum alloy trains with a maximum service speed of .[4] The train cars are 2.8m (09.2feet) wide with a transverse 2+2 seating layout, with 151 seats and a capacity of 441 people.[5] Unlike most Class B metro trains, each car only has 3 doors per side instead of 4, owing to the line's length and speed.