Horizontal curvature for ELR DDY 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 |
|---|---|---|---|
| 154M 0102y - 154M 0110y | ⚪-⚪⚪⚪-⚪ | Straight | Straight |
| 154M 0110y - 154M 0220y | ⚪-⚪⚪⚪-⚪ | Straight | Straight |
| 154M 0220y - 154M 0330y | 🟠-🟠🟠🟠-🟠 | Moderately Tight (564 m) | Moderately Tight (559 m to 572 m) |
| 154M 0330y - 154M 0440y | ⭕-🟠🟠🟠-🟡 | Tight (395 m) | Extremely Tight (170 m) to Moderate (1,008 m) |
| 154M 0440y - 154M 0550y | 🔴-🟠🟠🟠-🟠 | Tight (428 m) | Very Tight (327 m) to Moderately Tight (573 m) |
| 154M 0550y - 154M 0660y | ⚫-⚫⚫⚫-⚫ | Extremely Flat (20,553 m) | Extremely Flat (20,553 m) |
| 154M 0660y - 154M 0770y | ⚪-⚪⚪⚪-⚪ | Straight | Straight |
| 154M 0770y - 154M 0880y | ⚫-⚫⚫⚫-⚫ | Extremely Flat (47,736 m) | Extremely Flat (47,736 m) |
| 154M 0880y - 154M 0990y | ⚫-⚪⚪⚪-⚪ | Straight | Extremely Flat (31,146 m) to Straight |
| 154M 0990y - 154M 1100y | 🔴-🟠🟠🟠-🔵 | Moderately Tight (612 m) | Very Tight (242 m) to Moderately Flat (2,595 m) |
| 154M 1100y - 154M 1210y | 🔴-🟠🟠🟠-🟠 | Tight (481 m) | Very Tight (324 m) to Moderately Tight (680 m) |
| 154M 1210y - 154M 1320y | 🔴-🟠🟠🟠-🟣 | Moderately Tight (533 m) | Very Tight (321 m) to Moderate (1,349 m) |
| 154M 1320y - 154M 1430y | 🟠-🟠🟠🟠-🟠 | Tight (360 m) | Tight (360 m) |
| 154M 1430y - 154M 1540y | ⭕-🔴🔴🔴-🟡 | Very Tight (291 m) | Extremely Tight (<100 m) to Moderate (966 m) |
| 154M 1540y - 154M 1650y | 🔴-🟠🟠🟠-🟡 | Moderately Tight (606 m) | Very Tight (302 m) to Moderate (863 m) |
| 154M 1650y - 155M 0000y | ⭕-🔴🔴🔴-🟠 | Very Tight (329 m) | Extremely Tight (146 m) to Moderately Tight (501 m) |
| 155M 0000y - 155M 0110y | ⭕-🔴🔴🔴-🔵 | Very Tight (324 m) | Extremely Tight (129 m) to Moderately Flat (2,056 m) |
| 155M 0110y - 155M 0220y | ⭕-🟠🟠🟠-⚪ | Tight (491 m) | Extremely Tight (118 m) to Straight |
| 155M 0220y - 155M 0330y | 🟣-🟣🟣🟣-🟣 | Moderate (1,657 m) | Moderate (1,657 m) |
| 155M 0330y - 155M 0381y | ⚪-⚪⚪⚪-⚪ | Straight | Straight |