Horizontal curvature for ELR SHR 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 | Features |
|---|---|---|---|---|
| 86M 1346y - 86M 1430y | 🟠-🟡🟡🟡-⚪ | Moderate (841 m) | 477 m → Straight | |
| 86M 1430y - 86M 1540y | ⭕-⭕⭕⭕-🔴 | Extremely Tight (194 m) | 130 m → 272 m | Wishaw Central Jn |
| 86M 1540y - 86M 1650y | ⭕-🔴🔴🔴-🔴 | Very Tight (241 m) | 186 m → 290 m | |
| 86M 1650y - 87M 0000y | ⭕-🔴🔴🔴-🟠 | Very Tight (282 m) | 188 m → 408 m | |
| 87M 0000y - 87M 0110y | ⚪-⚪⚪⚪-⚪ | Straight | A721 UB | |
| 87M 0110y - 87M 0220y | 🟠-🟠🟠🟠-🟠 | Tight (445 m) | ||
| 87M 0220y - 87M 0330y | 🟠-🟠🟠🟠-🟠 | Tight (428 m) | 401 m → 460 m | |
| 87M 0330y - 87M 0440y | 🔴-🟠🟠🟠-🟠 | Tight (458 m) | 276 m → 574 m | |
| 87M 0440y - 87M 0550y | 🟠-🟠🟠🟠-🟠 | Moderately Tight (532 m) | ||
| 87M 0550y - 87M 0660y | 🔴-🟠🟠🟠-🟠 | Tight (395 m) | 263 m → 671 m | |
| 87M 0660y - 87M 0770y | 🟠-🟠🟠🟠-🟠 | Moderately Tight (634 m) | 543 m → 696 m | |
| 87M 0770y - 87M 0880y | 🟡-🟡🟡🟡-🟡 | Moderate (1,051 m) | ||
| 87M 0880y - 87M 0990y | 🟠-🟡🟡🟡-⚪ | Moderate (870 m) | 535 m → Straight | Shieldmuir North Jn |
| 87M 0990y - 87M 1009y | ⚪-⚪⚪⚪-⚪ | Straight |