Horizontal curvature for ELR CDC2 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 |
|---|---|---|---|---|
| 44M 0351y - 44M 0440y | ⚪-⚪⚪⚪-⚪ | Straight | former Balmano Jn | |
| 44M 0440y - 44M 0550y | ⚪-⚪⚪⚪-⚪ | Straight | former Bridge of Earn station | |
| 44M 0550y - 44M 0660y | ⚪-⚪⚪⚪-⚪ | Straight | former Bridge of Earn station | |
| 44M 0660y - 44M 0770y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 44M 0770y - 44M 0880y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 44M 0880y - 44M 0990y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 44M 0990y - 44M 1100y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 44M 1100y - 44M 1210y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 44M 1210y - 44M 1320y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 44M 1320y - 44M 1430y | 🔴-🟠🟠🟠-🟠 | Tight (420 m) | 336 m → 532 m | |
| 44M 1430y - 44M 1540y | 🟠-🟠🟠🟠-🟡 | Moderately Tight (528 m) | 400 m → 785 m | |
| 44M 1540y - 44M 1650y | 🟡-🟡🟡🟡-🟡 | Moderate (818 m) | ||
| 44M 1650y - 45M 0000y | 🟠-🟠🟠🟠-🟠 | Moderately Tight (572 m) | 492 m → 665 m | |
| 45M 0000y - 45M 0110y | 🟠-🟠🟠🟠-🟠 | Moderately Tight (580 m) | 536 m → 640 m | |
| 45M 0110y - 45M 0220y | 🟠-🟠🟠🟠-🟠 | Moderately Tight (529 m) | 525 m → 536 m | |
| 45M 0220y - 45M 0330y | 🔵-🔵🔵🔵-🔵 | Moderately Flat (2,244 m) | ||
| 45M 0330y - 45M 0440y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 45M 0440y - 45M 0550y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 45M 0550y - 45M 0660y | ⚪-⚪⚪⚪-⚪ | Straight | Earn Viaduct | |
| 45M 0660y - 45M 0770y | ⚪-⚪⚪⚪-⚪ | Straight | Earn Viaduct | |
| 45M 0770y - 45M 0880y | 🟠-🟡🟡🟡-🟢 | Moderate (1,197 m) | 643 m → 9,128 m | |
| 45M 0880y - 45M 0990y | 🔴-🟠🟠🟠-🟡 | Tight (466 m) | 298 m → 918 m | |
| 45M 0990y - 45M 1100y | 🟠-🟠🟠🟠-🟠 | Tight (479 m) | 461 m → 506 m | |
| 45M 1100y - 45M 1210y | 🟠-🟠🟠🟠-🟠 | Moderately Tight (542 m) | 505 m → 566 m | |
| 45M 1210y - 45M 1320y | 🔴-🟠🟠🟠-🟠 | Tight (422 m) | 270 m → 545 m | |
| 45M 1320y - 45M 1430y | ⭕-🔴🔴🔴-🟠 | Very Tight (350 m) | 187 m → 492 m | |
| 45M 1430y - 45M 1461y | 🔵-🟢🟢🟢-🟢 | Very Flat (6,731 m) | 4,860 m → 8,605 m | Hilton Jn |