Horizontal curvature for ELR RFR 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 |
|---|---|---|---|
| 36M 0339y - 36M 0440y | ⚪-⚪⚪⚪-⚪ | Straight | Straight |
| 36M 0440y - 36M 0550y | 🟢-🟢🟢🟢-🟢 | Very Flat (13,175 m) | Very Flat (13,175 m) |
| 36M 0550y - 36M 0660y | ⚪-⚪⚪⚪-⚪ | Straight | Straight |
| 36M 0660y - 36M 0770y | 🟢-🟢🟢🟢-🟢 | Very Flat (19,174 m) | Very Flat (19,174 m) |
| 36M 0770y - 36M 0880y | 🟣-🟣🟣🟣-🟣 | Moderate (1,858 m) | Moderate (1,858 m) |
| 36M 0880y - 36M 0990y | ⭕-🔴🔴🔴-🔵 | Very Tight (270 m) | Extremely Tight (171 m) to Moderately Flat (2,362 m) |
| 36M 0990y - 36M 1100y | ⭕-⭕⭕⭕-🔴 | Extremely Tight (213 m) | Extremely Tight (130 m) to Very Tight (335 m) |
| 36M 1100y - 36M 1210y | ⭕-🔴🔴🔴-🔴 | Very Tight (254 m) | Extremely Tight (196 m) to Very Tight (321 m) |
| 36M 1210y - 36M 1320y | ⭕-⭕⭕⭕-🟠 | Extremely Tight (213 m) | Extremely Tight (137 m) to Moderately Tight (521 m) |
| 36M 1320y - 36M 1430y | 🟠-🟠🟠🟠-🟣 | Moderately Tight (556 m) | Tight (373 m) to Moderate (1,368 m) |
| 36M 1430y - 36M 1540y | 🟠-🟠🟠🟠-🟡 | Moderately Tight (584 m) | Tight (366 m) to Moderate (985 m) |
| 36M 1540y - 36M 1650y | 🔴-🔴🔴🔴-🟠 | Very Tight (295 m) | Very Tight (238 m) to Tight (416 m) |
| 36M 1650y - 37M 0000y | ⚪-⚪⚪⚪-⚪ | Straight | Straight |
| 37M 0000y - 37M 0018y | ⚪-⚪⚪⚪-⚪ | Straight | Straight |