Horizontal curvature for ELR NMM 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 |
|---|---|---|---|
| 33M 1704y - 34M 0000y | ⚪-⚪⚪⚪-⚪ | Straight | Straight |
| 34M 0000y - 34M 0110y | 🔵-🟢🟢🟢-🟢 | Very Flat (5,958 m) | Flat (4,460 m) to Very Flat (17,902 m) |
| 34M 0110y - 34M 0220y | ⭕-🔴🔴🔴-🟠 | Very Tight (288 m) | Extremely Tight (127 m) to Moderately Tight (550 m) |
| 34M 0220y - 34M 0330y | ⭕-🔴🔴🔴-🔴 | Very Tight (269 m) | Extremely Tight (164 m) to Very Tight (347 m) |
| 34M 0330y - 34M 0440y | 🔴-🔴🔴🔴-🔴 | Very Tight (292 m) | Very Tight (287 m to 298 m) |
| 34M 0440y - 34M 0550y | ⭕-🔴🔴🔴-🔴 | Very Tight (227 m) | Extremely Tight (160 m) to Very Tight (296 m) |
| 34M 0550y - 34M 0660y | ⭕-🔴🔴🔴-🔴 | Very Tight (257 m) | Extremely Tight (210 m) to Very Tight (291 m) |
| 34M 0660y - 34M 0770y | ⚪-⚪⚪⚪-⚪ | Straight | Straight |
| 34M 0770y - 34M 0880y | 🟠-🟠🟠🟠-🟠 | Tight (407 m) | Tight (374 m) to Moderately Tight (501 m) |
| 34M 0880y - 34M 0990y | 🔴-🟡🟡🟡-⚪ | Moderate (1,186 m) | Very Tight (253 m) to Straight |
| 34M 0990y - 34M 1100y | ⚪-⚪⚪⚪-⚪ | Straight | Straight |
| 34M 1100y - 34M 1210y | ⚪-⚪⚪⚪-⚪ | Straight | Straight |
| 34M 1210y - 34M 1320y | 🟡-🟡🟡🟡-🟡 | Moderate (1,208 m) | Moderate (1,208 m) |
| 34M 1320y - 34M 1430y | 🟠-🟠🟠🟠-🟠 | Moderately Tight (543 m) | Tight (437 m) to Moderately Tight (733 m) |
| 34M 1430y - 34M 1540y | 🟠-🟠🟠🟠-🟠 | Tight (439 m) | Tight (367 m) to Moderately Tight (544 m) |
| 34M 1540y - 34M 1650y | 🔴-🟠🟠🟠-🟠 | Tight (419 m) | Very Tight (340 m) to Moderately Tight (557 m) |
| 34M 1650y - 35M 0000y | 🟡-🟡🟡🟡-🟡 | Moderate (765 m) | Moderate (765 m) |
| 35M 0000y - 35M 0110y | 🟡-🟡🟡🟡-🟡 | Moderate (959 m) | Moderate (959 m) |
| 35M 0110y - 35M 0220y | ⚪-⚪⚪⚪-⚪ | Straight | Straight |
| 35M 0220y - 35M 0330y | ⚪-⚪⚪⚪-⚪ | Straight | Straight |
| 35M 0330y - 35M 0440y | 🟠-🟠🟠🟠-🟠 | Moderately Tight (650 m) | Moderately Tight (650 m) |
| 35M 0440y - 35M 0550y | 🟠-🟡🟡🟡-🟡 | Moderate (799 m) | Moderately Tight (578 m) to Moderate (1,065 m) |
| 35M 0550y - 35M 0660y | 🟡-🟡🟡🟡-🟡 | Moderate (850 m) | Moderate (850 m) |
| 35M 0660y - 35M 0770y | 🟠-🟠🟠🟠-🟡 | Moderately Tight (710 m) | Moderately Tight (544 m) to Moderate (913 m) |
| 35M 0770y - 35M 0880y | 🟠-🟠🟠🟠-🟠 | Moderately Tight (698 m) | Moderately Tight (698 m) |
| 35M 0880y - 35M 0990y | 🟡-🟡🟡🟡-🟡 | Moderate (963 m) | Moderate (963 m) |
| 35M 0990y - 35M 1100y | 🟠-🟡🟡🟡-🟡 | Moderate (837 m) | Moderately Tight (721 m) to Moderate (973 m) |
| 35M 1100y - 35M 1210y | 🟠-🟠🟠🟠-🟠 | Tight (433 m) | Tight (388 m to 466 m) |
| 35M 1210y - 35M 1274y | 🟠-🟠🟠🟠-🟣 | Moderately Tight (646 m) | Tight (385 m) to Moderate (1,300 m) |