Horizontal curvature for ELR SNT 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 |
|---|---|---|---|
| 76M 0469y - 76M 0550y | ⭕-⭕⭕⭕-⚪ | Extremely Tight (149 m) | Extremely Tight (<100 m) to Straight |
| 76M 0550y - 76M 0660y | ⚪-⚪⚪⚪-⚪ | Straight | Straight |
| 76M 0660y - 76M 0770y | ⭕-🟣🟣🟣-⚪ | Moderate (1,330 m) | Extremely Tight (212 m) to Straight |
| 76M 0770y - 76M 0880y | ⭕-🟡🟡🟡-⚪ | Moderate (1,025 m) | Extremely Tight (131 m) to Straight |
| 76M 0880y - 76M 0990y | ⭕-🔵🔵🔵-⚪ | Moderately Flat (2,741 m) | Extremely Tight (192 m) to Straight |
| 76M 0990y - 76M 1100y | 🟡-🔵🔵🔵-⚪ | Flat (3,585 m) | Moderate (1,080 m) to Straight |
| 76M 1100y - 76M 1210y | ⚪-⚪⚪⚪-⚪ | Straight | Straight |
| 76M 1210y - 76M 1320y | ⭕-🟢🟢🟢-⚪ | Very Flat (13,139 m) | Extremely Tight (178 m) to Straight |
| 76M 1320y - 76M 1430y | 🟠-🟣🟣🟣-⚪ | Moderate (1,661 m) | Moderately Tight (630 m) to Straight |
| 76M 1430y - 76M 1540y | 🟣-🔵🔵🔵-⚪ | Moderately Flat (2,906 m) | Moderate (1,497 m) to Straight |
| 76M 1540y - 76M 1650y | 🔵-🔵🔵🔵-🔵 | Flat (3,331 m) | Flat (3,331 m) |
| 76M 1650y - 77M 0000y | ⚪-⚪⚪⚪-⚪ | Straight | Straight |
| 77M 0000y - 77M 0110y | ⚪-⚪⚪⚪-⚪ | Straight | Straight |
| 77M 0110y - 77M 0220y | 🟠-🟠🟠🟠-🟠 | Tight (440 m) | Tight (440 m) |
| 77M 0220y - 77M 0282y | ⚪-⚪⚪⚪-⚪ | Straight | Straight |