Horizontal curvature for ELR SHG is based on the digitised notional centre-line, calculated in 100 metre sections. The average radius computation is weighted, however this should be treated as indicative only. The computed minimum and maximum radii are shown for completeness, and often report a much tighter radius than the physical railway. Radii calculations are influenced by the digitisation quality, and often produce inaccurate values at the extremities of the ELR, areas of tracks divergence, and locations of very tight curvature.
| Mileage | Schematic | Average Radius | Radius Range |
|---|---|---|---|
| 13M 0416y - 13M 0440y | ⚪-⚪⚪⚪-⚪ | Straight | Straight |
| 13M 0440y - 13M 0550y | ⚪-⚪⚪⚪-⚪ | Straight | Straight |
| 13M 0550y - 13M 0660y | 🟠-🟠🟠🟠-🟡 | Moderately Tight (654 m) | Tight (439 m) to Moderate (1,005 m) |
| 13M 0660y - 13M 0770y | 🟡-🟡🟡🟡-🟣 | Moderate (1,037 m) | Moderate (848 m to 1,263 m) |
| 13M 0770y - 13M 0880y | 🟡-🟡🟡🟡-🟡 | Moderate (767 m) | Moderate (767 m) |
| 13M 0880y - 13M 0990y | 🟠-🟠🟠🟠-🟡 | Moderately Tight (703 m) | Moderately Tight (615 m) to Moderate (865 m) |
| 13M 0990y - 13M 1100y | 🟡-🟡🟡🟡-🟡 | Moderate (844 m) | Moderate (844 m) |
| 13M 1100y - 13M 1210y | 🟠-🟠🟠🟠-🟠 | Moderately Tight (744 m) | Moderately Tight (744 m) |
| 13M 1210y - 13M 1320y | 🟠-🟠🟠🟠-🟠 | Moderately Tight (664 m) | Moderately Tight (648 m to 683 m) |
| 13M 1320y - 13M 1430y | 🟠-🟠🟠🟠-🟠 | Moderately Tight (714 m) | Moderately Tight (714 m) |
| 13M 1430y - 13M 1540y | 🟡-🟡🟡🟡-🟡 | Moderate (878 m) | Moderate (878 m) |
| 13M 1540y - 13M 1650y | 🟡-🟡🟡🟡-🟡 | Moderate (938 m) | Moderate (938 m) |
| 13M 1650y - 14M 0000y | 🟠-🟠🟠🟠-🟠 | Moderately Tight (682 m) | Moderately Tight (682 m) |
| 14M 0000y - 14M 0110y | 🟠-🟠🟠🟠-🟡 | Moderately Tight (628 m) | Tight (428 m) to Moderate (897 m) |
| 14M 0110y - 14M 0220y | 🟡-🟡🟡🟡-🟡 | Moderate (973 m) | Moderate (973 m) |
| 14M 0220y - 14M 0330y | ⚪-⚪⚪⚪-⚪ | Straight | Straight |
| 14M 0330y - 14M 0440y | 🟠-🟣🟣🟣-⚪ | Moderate (1,668 m) | Moderately Tight (613 m) to Straight |
| 14M 0440y - 14M 0550y | 🔴-🟠🟠🟠-🟠 | Tight (401 m) | Very Tight (305 m) to Moderately Tight (541 m) |
| 14M 0550y - 14M 0660y | ⭕-🟡🟡🟡-⚪ | Moderate (792 m) | Extremely Tight (120 m) to Straight |
| 14M 0660y - 14M 0770y | ⚪-⚪⚪⚪-⚪ | Straight | Straight |
| 14M 0770y - 14M 0831y | ⚪-⚪⚪⚪-⚪ | Straight | Straight |