Horizontal curvature for ELR PVS 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 |
|---|---|---|---|
| 10M 0369y - 10M 0440y |  🔴-🟠🟠🟠-⚪ | Tight (432 m) | Very Tight (249 m) to Straight |
| 10M 0440y - 10M 0550y |  â•-â•â•â•-🔴 | Extremely Tight (217 m) | Extremely Tight (153 m) to Very Tight (310 m) |
| 10M 0550y - 10M 0660y |  â•-🟠🟠🟠-🟡 | Tight (359 m) | Extremely Tight (199 m) to Moderate (849 m) |
| 10M 0660y - 10M 0770y |  â•-🔴🔴🔴-🟠 | Very Tight (336 m) | Extremely Tight (216 m) to Moderately Tight (609 m) |
| 10M 0770y - 10M 0880y |  🔵-🔵🔵🔵-🔵 | Moderately Flat (2,479 m) | Moderately Flat (2,269 m to 2,733 m) |
| 10M 0880y - 10M 0990y |  🔵-🔵🔵🔵-🔵 | Moderately Flat (2,232 m) | Moderately Flat (2,232 m) |
| 10M 0990y - 10M 1100y |  â•-🟠🟠🟠-🔵 | Tight (407 m) | Extremely Tight (130 m) to Moderately Flat (2,832 m) |
| 10M 1100y - 10M 1210y |  â•-🟠🟠🟠-🟡 | Tight (452 m) | Extremely Tight (221 m) to Moderate (1,222 m) |
| 10M 1210y - 10M 1320y |  🔵-🔵🔵🔵-🟢 | Flat (3,815 m) | Moderately Flat (2,514 m) to Very Flat (18,270 m) |
| 10M 1320y - 10M 1412y |  🟣-🟣🟣🟣-🟣 | Moderate (1,558 m) | Moderate (1,551 m to 1,570 m) |