Horizontal curvature for ELR CNB4 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 |
|---|---|---|---|---|
| 164M 0688y - 164M 0770y | ⭕-🔴🔴🔴-⚪ | Very Tight (338 m) | 212 m → Straight | former Buxton Curve Jn |
| 164M 0770y - 164M 0880y | ⭕-⭕⭕⭕-🔴 | Extremely Tight (189 m) | <100 m → 335 m | |
| 164M 0880y - 164M 0990y | ⭕-🔴🔴🔴-🟠 | Very Tight (259 m) | <100 m → 505 m | |
| 164M 0990y - 164M 1100y | ⭕-🔴🔴🔴-🟢 | Very Tight (226 m) | 126 m → 6,150 m | |
| 164M 1100y - 164M 1210y | ⭕-🔴🔴🔴-⚪ | Very Tight (300 m) | <100 m → Straight | Buxton No.1 Jn |
| 164M 1210y - 164M 1320y | 🟡-🟣🟣🟣-🔵 | Moderate (1,676 m) | 1,130 m → 3,931 m | |
| 164M 1320y - 164M 1430y | 🟠-🟠🟠🟠-🟡 | Moderately Tight (677 m) | 523 m → 832 m | |
| 164M 1430y - 164M 1540y | 🟢-🟢🟢🟢-🟢 | Very Flat (5,669 m) | ||
| 164M 1540y - 164M 1650y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 164M 1650y - 165M 0000y | 🔵-🔵🔵🔵-🔵 | Flat (3,445 m) | ||
| 165M 0000y - 165M 0110y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 165M 0110y - 165M 0220y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 165M 0220y - 165M 0280y | ⚪-⚪⚪⚪-⚪ | Straight |