Horizontal curvature for ELR OAJ 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 |
|---|---|---|---|
| 48M 1553y - 48M 1650y |  🟠-🟠🟠🟠-🟠 | Moderately Tight (528 m) | Moderately Tight (528 m) |
| 48M 1650y - 49M 0000y |  🔴-🟡🟡🟡-⚪ | Moderate (948 m) | Very Tight (317 m) to Straight |
| 49M 0000y - 49M 0110y |  🔴-🔴🔴🔴-🔴 | Very Tight (329 m) | Very Tight (329 m) |
| 49M 0110y - 49M 0220y |  ⚪-⚪⚪⚪-⚪ | Straight | Straight |
| 49M 0220y - 49M 0330y |  ⚪-⚪⚪⚪-⚪ | Straight | Straight |
| 49M 0330y - 49M 0440y |  🔴-🔴🔴🔴-🔴 | Very Tight (315 m) | Very Tight (315 m) |
| 49M 0440y - 49M 0550y |  â•-🔴🔴🔴-🔴 | Very Tight (240 m) | Extremely Tight (111 m) to Very Tight (314 m) |
| 49M 0550y - 49M 0660y |  🔴-🔴🔴🔴-🟠 | Very Tight (279 m) | Very Tight (232 m) to Tight (388 m) |
| 49M 0660y - 49M 0770y |  â•-🔴🔴🔴-🟠 | Very Tight (277 m) | Extremely Tight (197 m) to Tight (391 m) |
| 49M 0770y - 49M 0880y |  â•-â•â•â•-🔴 | Extremely Tight (217 m) | Extremely Tight (154 m) to Very Tight (298 m) |
| 49M 0880y - 49M 0990y |  â•-🔴🔴🔴-⚪ | Very Tight (297 m) | Extremely Tight (202 m) to Straight |
| 49M 0990y - 49M 1084y |  ⚪-⚪⚪⚪-⚪ | Straight | Straight |