Horizontal curvature for ELR BRD 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 |
|---|---|---|---|
| 101M 1401y - 101M 1430y | ⚪-⚪⚪⚪-⚪ | Straight | Straight |
| 101M 1430y - 101M 1540y | ⭕-🔴🔴🔴-🟡 | Very Tight (279 m) | Extremely Tight (182 m) to Moderate (1,032 m) |
| 101M 1540y - 101M 1650y | 🟠-🟠🟠🟠-🟡 | Moderately Tight (612 m) | Tight (401 m) to Moderate (1,073 m) |
| 101M 1650y - 102M 0000y | ⭕-🔴🔴🔴-🔴 | Very Tight (231 m) | Extremely Tight (127 m) to Very Tight (310 m) |
| 102M 0000y - 102M 0110y | ⭕-⭕⭕⭕-⭕ | Extremely Tight (184 m) | Extremely Tight (132 m to 213 m) |
| 102M 0110y - 102M 0220y | 🔴-🔴🔴🔴-🟠 | Very Tight (347 m) | Very Tight (340 m) to Tight (363 m) |
| 102M 0220y - 102M 0330y | ⚪-⚪⚪⚪-⚪ | Straight | Straight |
| 102M 0330y - 102M 0440y | 🟠-🟠🟠🟠-🟠 | Tight (438 m) | Tight (381 m to 471 m) |
| 102M 0440y - 102M 0550y | 🔵-🔵🔵🔵-🔵 | Flat (3,928 m) | Flat (3,928 m) |
| 102M 0550y - 102M 0660y | 🟡-🟣🟣🟣-🔵 | Moderate (1,920 m) | Moderate (1,132 m) to Moderately Flat (2,813 m) |
| 102M 0660y - 102M 0770y | 🟣-🟣🟣🟣-🔵 | Moderate (1,760 m) | Moderate (1,584 m) to Moderately Flat (2,028 m) |
| 102M 0770y - 102M 0880y | ⚪-⚪⚪⚪-⚪ | Straight | Straight |
| 102M 0880y - 102M 0990y | 🟢-🟢🟢🟢-⚪ | Very Flat (18,091 m) | Very Flat (10,111 m) to Straight |
| 102M 0990y - 102M 1100y | ⚫-⚫⚫⚫-⚫ | Extremely Flat (20,339 m) | Extremely Flat (20,339 m) |
| 102M 1100y - 102M 1210y | ⚫-⚫⚫⚫-⚫ | Extremely Flat (41,738 m) | Extremely Flat (34,986 m to 49,318 m) |
| 102M 1210y - 102M 1320y | 🔵-🔵🔵🔵-🟢 | Flat (4,648 m) | Flat (3,887 m) to Very Flat (6,284 m) |
| 102M 1320y - 102M 1392y | 🟠-🟣🟣🟣-⚫ | Moderate (1,406 m) | Moderately Tight (542 m) to Extremely Flat (27,771 m) |