Horizontal curvature for ELR RSB 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 |
|---|---|---|---|
| 19M 0266y - 19M 0330y | ⭕-🟠🟠🟠-⚪ | Tight (386 m) | Extremely Tight (110 m) to Straight |
| 19M 0330y - 19M 0440y | ⭕-⭕⭕⭕-⚪ | Extremely Tight (210 m) | Extremely Tight (<100 m) to Straight |
| 19M 0440y - 19M 0550y | ⭕-⭕⭕⭕-⚪ | Extremely Tight (223 m) | Extremely Tight (<100 m) to Straight |
| 19M 0550y - 19M 0660y | ⭕-🔴🔴🔴-⚪ | Very Tight (263 m) | Extremely Tight (<100 m) to Straight |
| 19M 0660y - 19M 0770y | ⭕-🟠🟠🟠-⚫ | Moderately Tight (529 m) | Extremely Tight (<100 m) to Extremely Flat (28,866 m) |
| 19M 0770y - 19M 0880y | 🟣-🔵🔵🔵-🟢 | Moderately Flat (2,868 m) | Moderate (1,687 m) to Very Flat (5,372 m) |
| 19M 0880y - 19M 0990y | ⚪-⚪⚪⚪-⚪ | Straight | Straight |
| 19M 0990y - 19M 1100y | 🟠-🟡🟡🟡-🟣 | Moderate (1,168 m) | Moderately Tight (728 m) to Moderate (1,967 m) |
| 19M 1100y - 19M 1210y | 🟡-🟡🟡🟡-🟣 | Moderate (1,186 m) | Moderate (1,124 m to 1,325 m) |
| 19M 1210y - 19M 1320y | 🟠-🟣🟣🟣-🔵 | Moderate (1,257 m) | Moderately Tight (749 m) to Flat (4,440 m) |
| 19M 1320y - 19M 1430y | 🟡-🟡🟡🟡-🟡 | Moderate (1,052 m) | Moderate (1,001 m to 1,104 m) |
| 19M 1430y - 19M 1540y | 🟢-🟢🟢🟢-🟢 | Very Flat (11,498 m) | Very Flat (11,498 m) |
| 19M 1540y - 19M 1650y | ⚪-⚪⚪⚪-⚪ | Straight | Straight |
| 19M 1650y - 20M 0000y | ⚪-⚪⚪⚪-⚪ | Straight | Straight |
| 20M 0000y - 20M 0110y | 🔴-🟡🟡🟡-⚫ | Moderate (1,174 m) | Very Tight (236 m) to Extremely Flat (25,145 m) |
| 20M 0110y - 20M 0220y | 🟡-🟣🟣🟣-⚪ | Moderate (1,294 m) | Moderate (794 m) to Straight |
| 20M 0220y - 20M 0330y | ⭕-🟡🟡🟡-⚪ | Moderate (952 m) | Extremely Tight (<100 m) to Straight |
| 20M 0330y - 20M 0440y | ⭕-⭕⭕⭕-⚪ | Extremely Tight (<100 m) | Extremely Tight (<100 m) to Straight |
| 20M 0440y - 20M 0550y | ⭕-🟠🟠🟠-⚪ | Moderately Tight (534 m) | Extremely Tight (125 m) to Straight |
| 20M 0550y - 20M 0660y | ⚪-⚪⚪⚪-⚪ | Straight | Straight |
| 20M 0660y - 20M 0677y | ⚪-⚪⚪⚪-⚪ | Straight | Straight |