| Junctions and other features | Running Lines | Stations, Signal Boxes and Junctions | Distance from Signal Box above | Loops and Refuge Sidings | Notes | ||
|---|---|---|---|---|---|---|---|
| Up | Down | ||||||
| 1 |
 |
- | ↓ | Plymouth (North Road) West | - | ||
| 2 |
 |
↑ | ↓↓ | Cornwall Junction | 0m 418yds | ||
| 3 | ↑↑ | ↓ | Plymouth Millbay | 0m 506yds | |||
| 4 | ↑ | - | Plymouth Millbay Crossing | 0m 440yds | |||
| 1 |
|
- | ↓ | Devenport Junction | - | ||
| 2 |
 |
↑ | - | Cornwall Junction | 0m 594yds | ||