Horizontal curvature for ELR HEC 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 |
|---|---|---|---|
| 186M 0645y - 186M 0660y | ⚪-⚪⚪⚪-⚪ | Straight | Straight |
| 186M 0660y - 186M 0770y | 🔴-🟠🟠🟠-🟢 | Tight (476 m) | Very Tight (238 m) to Very Flat (8,260 m) |
| 186M 0770y - 186M 0880y | 🔴-🟠🟠🟠-🟣 | Tight (479 m) | Very Tight (299 m) to Moderate (1,735 m) |
| 186M 0880y - 186M 0990y | 🔴-🟠🟠🟠-🟠 | Tight (406 m) | Very Tight (338 m) to Tight (498 m) |
| 186M 0990y - 186M 1100y | 🟠-🟡🟡🟡-🟢 | Moderate (759 m) | Tight (441 m) to Very Flat (6,006 m) |
| 186M 1100y - 186M 1210y | ⭕-🟠🟠🟠-🟠 | Tight (370 m) | Extremely Tight (198 m) to Tight (481 m) |
| 186M 1210y - 186M 1320y | 🟠-🟠🟠🟠-🟠 | Tight (456 m) | Tight (380 m) to Moderately Tight (615 m) |
| 186M 1320y - 186M 1430y | ⭕-🟠🟠🟠-🟠 | Tight (433 m) | Extremely Tight (191 m) to Moderately Tight (647 m) |
| 186M 1430y - 186M 1443y | ⚪-⚪⚪⚪-⚪ | Straight | Straight |