Horizontal curvature for ELR SJS 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 |
|---|---|---|---|
| 142M 0326y - 142M 0330y | ⚪-⚪⚪⚪-⚪ | Straight | Straight |
| 142M 0330y - 142M 0440y | ⚪-⚪⚪⚪-⚪ | Straight | Straight |
| 142M 0440y - 142M 0550y | 🔴-🟠🟠🟠-⚪ | Tight (421 m) | Very Tight (255 m) to Straight |
| 142M 0550y - 142M 0660y | ⚪-⚪⚪⚪-⚪ | Straight | Straight |
| 142M 0660y - 142M 0770y | ⭕-⭕⭕⭕-🔴 | Extremely Tight (198 m) | Extremely Tight (169 m) to Very Tight (250 m) |
| 142M 0770y - 142M 0880y | ⭕-🔴🔴🔴-🔴 | Very Tight (230 m) | Extremely Tight (179 m) to Very Tight (253 m) |
| 142M 0880y - 142M 0990y | ⭕-🔴🔴🔴-🟠 | Very Tight (294 m) | Extremely Tight (198 m) to Tight (381 m) |
| 142M 0990y - 142M 1100y | ⭕-🔴🔴🔴-🔴 | Very Tight (230 m) | Extremely Tight (206 m) to Very Tight (247 m) |
| 142M 1100y - 142M 1210y | 🟠-🟠🟠🟠-🟠 | Moderately Tight (636 m) | Moderately Tight (636 m) |
| 142M 1210y - 142M 1320y | ⚪-⚪⚪⚪-⚪ | Straight | Straight |
| 142M 1320y - 142M 1430y | ⚫-⚫⚫⚫-⚫ | Extremely Flat (35,147 m) | Extremely Flat (35,147 m) |
| 142M 1430y - 142M 1540y | ⭕-🔴🔴🔴-🟡 | Very Tight (258 m) | Extremely Tight (157 m) to Moderate (1,064 m) |
| 142M 1540y - 142M 1650y | ⚪-⚪⚪⚪-⚪ | Straight | Straight |
| 142M 1650y - 142M 1723y | ⚪-⚪⚪⚪-⚪ | Straight | Straight |