Horizontal curvature for ELR RSW 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 |
|---|---|---|---|
| 117M 1130y - 117M 1210y | ⚪-⚪⚪⚪-⚪ | Straight | Straight |
| 117M 1210y - 117M 1320y | ⭕-🔵🔵🔵-⚪ | Moderately Flat (2,457 m) | Extremely Tight (217 m) to Straight |
| 117M 1320y - 117M 1430y | ⚪-⚪⚪⚪-⚪ | Straight | Straight |
| 117M 1430y - 117M 1540y | ⭕-🟡🟡🟡-⚪ | Moderate (1,180 m) | Extremely Tight (116 m) to Straight |
| 117M 1540y - 117M 1650y | ⭕-🟠🟠🟠-⚪ | Tight (438 m) | Extremely Tight (150 m) to Straight |
| 117M 1650y - 118M 0000y | 🔴-🔴🔴🔴-🔴 | Very Tight (269 m) | Very Tight (260 m to 280 m) |
| 118M 0000y - 118M 0041y | ⭕-🔴🔴🔴-⚪ | Very Tight (254 m) | Extremely Tight (<100 m) to Straight |