Horizontal curvature for ELR GMC 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 |
|---|---|---|---|
| 39M 0360y - 39M 0440y | ⚪-⚪⚪⚪-⚪ | Straight | Straight |
| 39M 0440y - 39M 0550y | ⭕-🟠🟠🟠-⚪ | Tight (420 m) | Extremely Tight (132 m) to Straight |
| 39M 0550y - 39M 0660y | ⚪-⚪⚪⚪-⚪ | Straight | Straight |
| 39M 0660y - 39M 0770y | ⭕-⭕⭕⭕-⭕ | Extremely Tight (185 m) | Extremely Tight (169 m to 195 m) |
| 39M 0770y - 39M 0880y | ⚪-⚪⚪⚪-⚪ | Straight | Straight |
| 39M 0880y - 39M 0990y | 🔴-🔴🔴🔴-🟠 | Very Tight (329 m) | Very Tight (278 m) to Tight (497 m) |
| 39M 0990y - 39M 1100y | ⭕-⭕⭕⭕-🔴 | Extremely Tight (196 m) | Extremely Tight (168 m) to Very Tight (227 m) |
| 39M 1100y - 39M 1210y | 🟠-🟠🟠🟠-🟠 | Tight (449 m) | Tight (449 m) |
| 39M 1210y - 39M 1320y | 🔵-🔵🔵🔵-🔵 | Moderately Flat (2,982 m) | Moderately Flat (2,982 m) |
| 39M 1320y - 39M 1430y | ⚪-⚪⚪⚪-⚪ | Straight | Straight |
| 39M 1430y - 39M 1540y | ⚪-⚪⚪⚪-⚪ | Straight | Straight |
| 39M 1540y - 39M 1650y | ⚪-⚪⚪⚪-⚪ | Straight | Straight |
| 39M 1650y - 40M 0000y | ⚫-⚫⚫⚫-⚫ | Extremely Flat (29,817 m) | Extremely Flat (29,817 m) |
| 40M 0000y - 40M 0110y | 🟢-🟢🟢🟢-🟢 | Very Flat (17,872 m) | Very Flat (17,872 m) |
| 40M 0110y - 40M 0220y | ⚫-⚫⚫⚫-⚫ | Extremely Flat (41,989 m) | Extremely Flat (41,989 m) |
| 40M 0220y - 40M 0330y | ⚪-⚪⚪⚪-⚪ | Straight | Straight |
| 40M 0330y - 40M 0333y | ⚪-⚪⚪⚪-⚪ | Straight | Straight |