Horizontal curvature for ELR RNJ 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 | Features |
|---|---|---|---|---|
| 67M 1687y - 68M 0000y | 🟠-🟡🟡🟡-⚪ | Moderate (763 m) | 389 m → Straight | Reading Spur Jn |
| 68M 0000y - 68M 0110y | 🔴-🟠🟠🟠-🟠| Tight (486 m) | 297 m → 742 m | |
| 68M 0110y - 68M 0220y | 🟠-🟠🟠🟠-🟡 | Moderately Tight (577 m) | 392 m → 854 m | |
| 68M 0220y - 68M 0330y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 68M 0330y - 68M 0440y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 68M 0440y - 68M 0550y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 68M 0550y - 68M 0660y | 🟠-🟠🟠🟠-🟡 | Moderately Tight (564 m) | 395 m → 1,153 m | |
| 68M 0660y - 68M 0770y | 🟠-🟣🟣🟣-⚪ | Moderate (1,639 m) | 557 m → Straight | Reading New Jn |
| 68M 0770y - 68M 0880y | ⚪-⚪⚪⚪-⚪ | Straight |