| 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 20 m.p.h. | |||||||
| 1 |
 |
- | ↓↓ | Willesden No. 1 | - | ||
| 2 | ↑↑ | ↓↓ | Willesden junction No. 3 | 0m 274yds | |||
| 3 | ↑↑ | ↓ | Willesden junction No. 4 | 0m 310yds | |||
| 4 | ? | ↑↑ | ↓ | Willesden junction No. 7 | 0m 862yds | ||
| 5 | ? | ↑ | ↓ | Willesden junction No. 9 | 0m 864yds | ||
| 6 |
 |
↑ | - | Brent Junction | 0m 686yds | ||