Horizontal curvature for ELR OLW 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 |
|---|---|---|---|
| 190M 0547y - 190M 0550y | ⚪-⚪⚪⚪-⚪ | Straight | Straight |
| 190M 0550y - 190M 0660y | 🟡-🟣🟣🟣-⚫ | Moderate (1,392 m) | Moderate (774 m) to Extremely Flat (28,505 m) |
| 190M 0660y - 190M 0770y | 🟡-🟣🟣🟣-🟣 | Moderate (1,419 m) | Moderate (897 m to 1,851 m) |
| 190M 0770y - 190M 0880y | 🔴-🟡🟡🟡-🔵 | Moderate (1,081 m) | Very Tight (295 m) to Flat (3,202 m) |
| 190M 0880y - 190M 0990y | ⭕-🟠🟠🟠-🟢 | Tight (452 m) | Extremely Tight (168 m) to Very Flat (7,123 m) |
| 190M 0990y - 190M 1100y | 🔴-🔴🔴🔴-🟠 | Very Tight (311 m) | Very Tight (226 m) to Tight (466 m) |
| 190M 1100y - 190M 1210y | 🔴-🔴🔴🔴-🟠 | Very Tight (334 m) | Very Tight (273 m) to Tight (412 m) |
| 190M 1210y - 190M 1320y | 🟣-🟣🟣🟣-🟣 | Moderate (1,760 m) | Moderate (1,760 m) |
| 190M 1320y - 190M 1430y | 🟣-🟣🟣🟣-🟣 | Moderate (1,428 m) | Moderate (1,428 m) |
| 190M 1430y - 190M 1540y | 🟡-🔵🔵🔵-⚪ | Moderately Flat (2,152 m) | Moderate (891 m) to Straight |
| 190M 1540y - 190M 1650y | 🟠-🟠🟠🟠-🟠 | Moderately Tight (690 m) | Moderately Tight (690 m) |
| 190M 1650y - 191M 0000y | 🔴-🟠🟠🟠-🟠 | Tight (429 m) | Very Tight (314 m) to Moderately Tight (550 m) |
| 191M 0000y - 191M 0110y | 🟠-🟠🟠🟠-⚪ | Moderately Tight (636 m) | Tight (408 m) to Straight |
| 191M 0110y - 191M 0220y | 🟠-🟡🟡🟡-⚪ | Moderate (1,033 m) | Moderately Tight (683 m) to Straight |
| 191M 0220y - 191M 0256y | ⚪-⚪⚪⚪-⚪ | Straight | Straight |