| Junctions and other features | Running Lines | Stations, Signal Boxes and Junctions | Distance from Signal Box above | Loops and Refuge Sidings | Notes | |
|---|---|---|---|---|---|---|
| Maximum permissible speed 40 m.p.h. | ||||||
| 1 | ↕ | Welwyn Garden City Station | – | |||
| 2 | ↕ | Hertford North Station | 6m 412yds | |||
| 3 | ↕ | Hertford East (G.E.) Station | 0m 1210yds | |||