Horizontal curvature for ELR SOY 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 |
|---|---|---|---|
| 78M 0140y - 78M 0220y | ⭕-🟠🟠🟠-⚪ | Tight (498 m) | Extremely Tight (<100 m) to Straight |
| 78M 0220y - 78M 0330y | 🟠-🔵🔵🔵-⚪ | Moderately Flat (2,423 m) | Moderately Tight (654 m) to Straight |
| 78M 0330y - 78M 0440y | 🔴-🟣🟣🟣-⚪ | Moderate (1,462 m) | Very Tight (327 m) to Straight |
| 78M 0440y - 78M 0550y | 🔴-🟣🟣🟣-⚪ | Moderate (1,334 m) | Very Tight (264 m) to Straight |
| 78M 0550y - 78M 0660y | ⚪-⚪⚪⚪-⚪ | Straight | Straight |
| 78M 0660y - 78M 0770y | ⚪-⚪⚪⚪-⚪ | Straight | Straight |
| 78M 0770y - 78M 0880y | ⚪-⚪⚪⚪-⚪ | Straight | Straight |
| 78M 0880y - 78M 0990y | ⚪-⚪⚪⚪-⚪ | Straight | Straight |
| 78M 0990y - 78M 1100y | ⚪-⚪⚪⚪-⚪ | Straight | Straight |
| 78M 1100y - 78M 1210y | ⭕-🟠🟠🟠-⚪ | Moderately Tight (582 m) | Extremely Tight (<100 m) to Straight |
| 78M 1210y - 78M 1320y | 🟡-🟡🟡🟡-🟡 | Moderate (804 m) | Moderate (804 m) |
| 78M 1320y - 78M 1430y | 🟣-🟣🟣🟣-🟣 | Moderate (1,330 m) | Moderate (1,330 m) |
| 78M 1430y - 78M 1540y | ⚪-⚪⚪⚪-⚪ | Straight | Straight |
| 78M 1540y - 78M 1650y | ⭕-🔴🔴🔴-🟠 | Very Tight (262 m) | Extremely Tight (126 m) to Moderately Tight (544 m) |
| 78M 1650y - 79M 0000y | 🟠-🟠🟠🟠-🟠 | Moderately Tight (707 m) | Moderately Tight (707 m) |
| 79M 0000y - 79M 0110y | ⭕-🔴🔴🔴-🟠 | Very Tight (283 m) | Extremely Tight (200 m) to Tight (400 m) |
| 79M 0110y - 79M 0220y | ⭕-⭕⭕⭕-🔴 | Extremely Tight (129 m) | Extremely Tight (110 m) to Very Tight (236 m) |
| 79M 0220y - 79M 0330y | ⭕-⭕⭕⭕-🔴 | Extremely Tight (217 m) | Extremely Tight (180 m) to Very Tight (314 m) |
| 79M 0330y - 79M 0440y | ⭕-⭕⭕⭕-🔴 | Extremely Tight (212 m) | Extremely Tight (195 m) to Very Tight (231 m) |
| 79M 0440y - 79M 0550y | ⭕-⭕⭕⭕-⭕ | Extremely Tight (175 m) | Extremely Tight (164 m to 194 m) |
| 79M 0550y - 79M 0660y | ⚪-⚪⚪⚪-⚪ | Straight | Straight |
| 79M 0660y - 79M 0770y | 🟠-🟠🟠🟠-🟠 | Tight (373 m) | Tight (373 m) |
| 79M 0770y - 79M 0880y | ⚪-⚪⚪⚪-⚪ | Straight | Straight |
| 79M 0880y - 79M 0990y | 🔵-🔵🔵🔵-🔵 | Flat (3,890 m) | Flat (3,890 m) |
| 79M 0990y - 79M 1100y | ⭕-🔴🔴🔴-🟠 | Very Tight (232 m) | Extremely Tight (121 m) to Tight (374 m) |
| 79M 1100y - 79M 1210y | ⭕-⭕⭕⭕-🟠 | Extremely Tight (126 m) | Extremely Tight (<100 m) to Tight (376 m) |
| 79M 1210y - 79M 1320y | ⚪-⚪⚪⚪-⚪ | Straight | Straight |
| 79M 1320y - 79M 1430y | ⚪-⚪⚪⚪-⚪ | Straight | Straight |
| 79M 1430y - 79M 1540y | ⚫-⚫⚫⚫-⚫ | Extremely Flat (23,766 m) | Extremely Flat (23,766 m) |
| 79M 1540y - 79M 1650y | 🟢-🟢🟢🟢-🟢 | Very Flat (11,734 m) | Very Flat (11,734 m) |
| 79M 1650y - 80M 0000y | ⚪-⚪⚪⚪-⚪ | Straight | Straight |
| 80M 0000y - 80M 0110y | ⭕-⭕⭕⭕-🔴 | Extremely Tight (<100 m) | Extremely Tight (<100 m) to Very Tight (326 m) |
| 80M 0110y - 80M 0220y | ⭕-⭕⭕⭕-🟣 | Extremely Tight (<100 m) | Extremely Tight (<100 m) to Moderate (1,504 m) |
| 80M 0220y - 80M 0330y | ⭕-⭕⭕⭕-🔴 | Extremely Tight (<100 m) | Extremely Tight (<100 m) to Very Tight (261 m) |
| 80M 0330y - 80M 0440y | ⚪-⚪⚪⚪-⚪ | Straight | Straight |
| 80M 0440y - 80M 0550y | ⚪-⚪⚪⚪-⚪ | Straight | Straight |
| 80M 0550y - 80M 0660y | ⚪-⚪⚪⚪-⚪ | Straight | Straight |
| 80M 0660y - 80M 0770y | ⚪-⚪⚪⚪-⚪ | Straight | Straight |
| 80M 0770y - 80M 0858y | ⚪-⚪⚪⚪-⚪ | Straight | Straight |