| Junctions and other features | Running Lines | Stations, Signal Boxes and Junctions | Distance from Signal Box above | Loops and Refuge Sidings | Notes | ||
|---|---|---|---|---|---|---|---|
| Up | Down | ||||||
| Maximum permissible speed 60 m.p.h. | |||||||
| 1 | – | ↓ | Greenock (Princess Pier) Station | – | |||
| 2 | ↑ | ↓ | Mearns St. | 1m 198yds | |||
| 3 | ↑ | ↓ | Cartsburn Junction | 0m 1100yds | |||
| 4 | ↑ | ↓ | Upper Port Glasgow | 3m 440yds | |||
| 5 | ↑ | ↓ | Kilmalcolm Station | 2m 1233yds | DRS 36 URS 41 |
||
| 6 | ↑ | ↓ | Bridge of Weir Station | 3m 1495yds | DRS 24 URS 38 |
||
| ↑ | ↓ | Houston and Crosslee | |||||
| 7 | ↑ | ↓↓ | Cart Junction | 2m 1694yds | DRS 37 URS 43 |
||
| 8 | ↑↑ | – | Elderslie No. 2 | 0m 1254yds | |||