Horizontal curvature for ELR STB 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 |
|---|---|---|---|
| 53M 0298y - 53M 0330y | ⭕-🟠🟠🟠-⚪ | Tight (368 m) | Extremely Tight (194 m) to Straight |
| 53M 0330y - 53M 0440y | ⭕-⭕⭕⭕-🔴 | Extremely Tight (152 m) | Extremely Tight (<100 m) to Very Tight (343 m) |
| 53M 0440y - 53M 0550y | ⭕-⭕⭕⭕-🔵 | Extremely Tight (215 m) | Extremely Tight (<100 m) to Flat (3,806 m) |
| 53M 0550y - 53M 0660y | ⭕-⭕⭕⭕-⭕ | Extremely Tight (165 m) | Extremely Tight (122 m to 216 m) |
| 53M 0660y - 53M 0770y | ⭕-🟡🟡🟡-🔵 | Moderate (974 m) | Extremely Tight (114 m) to Moderately Flat (2,749 m) |
| 53M 0770y - 53M 0880y | ⭕-🟡🟡🟡-🔵 | Moderate (1,021 m) | Extremely Tight (119 m) to Flat (3,578 m) |
| 53M 0880y - 53M 0990y | 🟣-🟣🟣🟣-🟣 | Moderate (1,435 m) | Moderate (1,435 m) |
| 53M 0990y - 53M 1100y | 🟡-🟡🟡🟡-🟡 | Moderate (969 m) | Moderate (969 m) |
| 53M 1100y - 53M 1210y | 🟠-🟠🟠🟠-🟠 | Moderately Tight (606 m) | Moderately Tight (606 m) |
| 53M 1210y - 53M 1320y | 🟢-🟢🟢🟢-🟢 | Very Flat (7,029 m) | Very Flat (7,029 m) |
| 53M 1320y - 53M 1430y | 🔴-🟡🟡🟡-⚪ | Moderate (771 m) | Very Tight (233 m) to Straight |
| 53M 1430y - 53M 1540y | 🟠-🟠🟠🟠-🟡 | Moderately Tight (619 m) | Tight (416 m) to Moderate (929 m) |
| 53M 1540y - 53M 1650y | ⚪-⚪⚪⚪-⚪ | Straight | Straight |
| 53M 1650y - 54M 0000y | ⚪-⚪⚪⚪-⚪ | Straight | Straight |
| 54M 0000y - 54M 0018y | ⚪-⚪⚪⚪-⚪ | Straight | Straight |