Horizontal curvature for ELR GSM6 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 |
|---|---|---|---|
| 107M 0423y - 107M 0440y | ⚪-⚪⚪⚪-⚪ | Straight | Straight |
| 107M 0440y - 107M 0550y | 🔴-🟠🟠🟠-🔵 | Moderately Tight (645 m) | Very Tight (252 m) to Moderately Flat (2,051 m) |
| 107M 0550y - 107M 0660y | ⭕-🔴🔴🔴-🔴 | Very Tight (228 m) | Extremely Tight (196 m) to Very Tight (257 m) |
| 107M 0660y - 107M 0770y | ⭕-⭕⭕⭕-🔴 | Extremely Tight (214 m) | Extremely Tight (148 m) to Very Tight (275 m) |
| 107M 0770y - 107M 0880y | ⭕-🔴🔴🔴-🟠 | Very Tight (240 m) | Extremely Tight (165 m) to Tight (361 m) |
| 107M 0880y - 107M 0974y | 🟡-🟡🟡🟡-🟡 | Moderate (1,058 m) | Moderate (1,058 m) |