Horizontal curvature for ELR AJM1 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 |
|---|---|---|---|---|
| 137M 0799y - 137M 0880y | 🔵-🔵🔵🔵-🔵 | Moderately Flat (2,879 m) | ||
| 137M 0880y - 137M 0990y | 🟡-🟣🟣🟣-🔵 | Moderate (1,789 m) | 1,190 m → 2,468 m | Ambergate Jn |
| 137M 0990y - 137M 1100y | 🟡-🟣🟣🟣-🔵 | Moderate (1,424 m) | 888 m → 4,094 m | |
| 137M 1100y - 137M 1210y | 🔵-🔵🔵🔵-🔵 | Moderately Flat (2,791 m) | 2,557 m → 2,988 m | |
| 137M 1210y - 137M 1320y | 🟡-🟣🟣🟣-🔵 | Moderate (1,347 m) | 1,102 m → 3,363 m | |
| 137M 1320y - 137M 1430y | 🟡-🔵🔵🔵-⚪ | Moderately Flat (2,520 m) | 1,164 m → Straight | |
| 137M 1430y - 137M 1540y | 🟠-🟠🟠🟠-🟠 | Moderately Tight (549 m) | ||
| 137M 1540y - 137M 1650y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 137M 1650y - 138M 0000y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 138M 0000y - 138M 0110y | 🔴-🟠🟠🟠-🟡 | Moderately Tight (553 m) | 342 m → 800 m | |
| 138M 0110y - 138M 0220y | 🟡-🟡🟡🟡-🟡 | Moderate (1,101 m) | ||
| 138M 0220y - 138M 0330y | ⭕-🔴🔴🔴-🟠 | Very Tight (236 m) | 176 m → 352 m | AMBERGATE |
| 138M 0330y - 138M 0440y | ⭕-⭕⭕⭕-🔴 | Extremely Tight (196 m) | 105 m → 281 m | AMBERGATE |
| 138M 0440y - 138M 0550y | ⭕-⭕⭕⭕-⭕ | Extremely Tight (187 m) | 172 m → 202 m | |
| 138M 0550y - 138M 0660y | ⭕-🟠🟠🟠-🟠 | Tight (378 m) | 165 m → 593 m | |
| 138M 0660y - 138M 0770y | 🟡-🟡🟡🟡-🟡 | Moderate (765 m) | ||
| 138M 0770y - 138M 0880y | 🟣-🟣🟣🟣-🟣 | Moderate (1,632 m) | ||
| 138M 0880y - 138M 0990y | 🔴-🟠🟠🟠-🟠 | Tight (407 m) | 330 m → 472 m | |
| 138M 0990y - 138M 1100y | 🟠-🟠🟠🟠-🟠 | Moderately Tight (604 m) | ||
| 138M 1100y - 138M 1210y | 🔴-🟠🟠🟠-🟡 | Moderately Tight (606 m) | 263 m → 1,111 m | |
| 138M 1210y - 138M 1320y | 🟣-🟣🟣🟣-🟣 | Moderate (1,286 m) | ||
| 138M 1320y - 138M 1430y | 🟠-🟠🟠🟠-🟡 | Moderately Tight (741 m) | 485 m → 1,068 m | |
| 138M 1430y - 138M 1540y | 🟡-🟡🟡🟡-🟡 | Moderate (775 m) | ||
| 138M 1540y - 138M 1650y | 🟡-🟡🟡🟡-🟡 | Moderate (780 m) | ||
| 138M 1650y - 139M 0000y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 139M 0000y - 139M 0110y | 🟡-🟡🟡🟡-🟡 | Moderate (994 m) | ||
| 139M 0110y - 139M 0220y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 139M 0220y - 139M 0330y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 139M 0330y - 139M 0440y | 🟠-🟠🟠🟠-🟠 | Tight (435 m) | 415 m → 458 m | |
| 139M 0440y - 139M 0550y | 🔴-🟠🟠🟠-🟣 | Tight (499 m) | 305 m → 1,851 m | |
| 139M 0550y - 139M 0660y | 🟠-🟠🟠🟠-🟠 | Tight (491 m) | ||
| 139M 0660y - 139M 0770y | ⭕-🟠🟠🟠-🟣 | Moderately Tight (557 m) | 207 m → 1,332 m | |
| 139M 0770y - 139M 0880y | 🟠-🟠🟠🟠-🟡 | Moderately Tight (653 m) | 424 m → 1,117 m | |
| 139M 0880y - 139M 0990y | 🟠-🟠🟠🟠-🟠 | Moderately Tight (591 m) | 503 m → 678 m | |
| 139M 0990y - 139M 1100y | 🟠-🟠🟠🟠-🟠 | Moderately Tight (572 m) | 488 m → 668 m | |
| 139M 1100y - 139M 1210y | 🔴-🟠🟠🟠-🟠 | Tight (433 m) | 286 m → 507 m | |
| 139M 1210y - 139M 1320y | 🟠-🟠🟠🟠-🟠 | Tight (441 m) | 409 m → 481 m | |
| 139M 1320y - 139M 1430y | 🟠-🟠🟠🟠-🟠 | Tight (465 m) | 352 m → 605 m | |
| 139M 1430y - 139M 1540y | 🔴-🟠🟠🟠-🟠 | Tight (390 m) | 251 m → 506 m | |
| 139M 1540y - 139M 1650y | 🟠-🟠🟠🟠-🟠 | Moderately Tight (513 m) | ||
| 139M 1650y - 140M 0000y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 140M 0000y - 140M 0110y | ⭕-🟠🟠🟠-🟠 | Tight (360 m) | 115 m → 540 m | |
| 140M 0110y - 140M 0220y | 🟠-🟠🟠🟠-🟠 | Tight (428 m) | ||
| 140M 0220y - 140M 0330y | 🟠-🟠🟠🟠-🟠 | Tight (391 m) | 364 m → 425 m | WHATSTANDWELL |
| 140M 0330y - 140M 0440y | 🔴-🔴🔴🔴-🟠 | Very Tight (316 m) | 282 m → 352 m | WHATSTANDWELL; Whatstandwell Tunnel |
| 140M 0440y - 140M 0550y | ⚪-⚪⚪⚪-⚪ | Straight | Whatstandwell Tunnel | |
| 140M 0550y - 140M 0660y | 🟠-🟡🟡🟡-🟣 | Moderate (1,026 m) | 684 m → 1,872 m | Whatstandwell Tunnel |
| 140M 0660y - 140M 0770y | 🟠-🟠🟠🟠-🟠 | Moderately Tight (588 m) | 568 m → 616 m | |
| 140M 0770y - 140M 0880y | 🟡-🟡🟡🟡-🟡 | Moderate (1,242 m) | ||
| 140M 0880y - 140M 0990y | 🟠-🟠🟠🟠-🟠 | Moderately Tight (514 m) | ||
| 140M 0990y - 140M 1100y | 🔴-🟠🟠🟠-🟠 | Tight (377 m) | 300 m → 447 m | |
| 140M 1100y - 140M 1210y | 🟠-🟠🟠🟠-🟠 | Moderately Tight (707 m) | ||
| 140M 1210y - 140M 1320y | 🟠-🟠🟠🟠-🟠 | Tight (434 m) | 396 m → 485 m | |
| 140M 1320y - 140M 1430y | 🔴-🟠🟠🟠-🟠 | Tight (394 m) | 332 m → 458 m | |
| 140M 1430y - 140M 1540y | 🟠-🟠🟠🟠-🟠 | Tight (410 m) | ||
| 140M 1540y - 140M 1650y | 🟠-🟠🟠🟠-🟡 | Moderately Tight (515 m) | 372 m → 764 m | |
| 140M 1650y - 141M 0000y | 🔵-🔵🔵🔵-🔵 | Moderately Flat (2,079 m) | ||
| 141M 0000y - 141M 0110y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 141M 0110y - 141M 0220y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 141M 0220y - 141M 0330y | 🟢-🟢🟢🟢-🟢 | Very Flat (13,771 m) | ||
| 141M 0330y - 141M 0440y | 🟣-🟣🟣🟣-🟣 | Moderate (1,412 m) | ||
| 141M 0440y - 141M 0550y | 🟠-🟠🟠🟠-🟠 | Moderately Tight (543 m) | 526 m → 562 m | |
| 141M 0550y - 141M 0660y | 🟠-🟠🟠🟠-🟠 | Moderately Tight (665 m) | 651 m → 674 m | |
| 141M 0660y - 141M 0770y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 141M 0770y - 141M 0880y | 🟠-🟠🟠🟠-🟠 | Moderately Tight (648 m) | ||
| 141M 0880y - 141M 0990y | 🟠-🟠🟠🟠-🟡 | Moderately Tight (596 m) | 522 m → 762 m | Leawood Tunnel |
| 141M 0990y - 141M 1100y | 🟠-🟠🟠🟠-🟠 | Moderately Tight (720 m) | Leawood Tunnel | |
| 141M 1100y - 141M 1210y | 🟠-🟠🟠🟠-🟠 | Moderately Tight (578 m) | 548 m → 609 m | Leawood Tunnel |
| 141M 1210y - 141M 1320y | 🟠-🟠🟠🟠-🟠 | Moderately Tight (692 m) | 668 m → 726 m | Leawood Tunnel |
| 141M 1320y - 141M 1430y | 🟠-🟠🟠🟠-🟠 | Moderately Tight (533 m) | 481 m → 593 m | |
| 141M 1430y - 141M 1540y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 141M 1540y - 141M 1650y | 🟡-🟣🟣🟣-⚪ | Moderate (1,498 m) | 802 m → Straight | |
| 141M 1650y - 142M 0000y | 🟠-🟠🟠🟠-🟠 | Moderately Tight (538 m) | 384 m → 749 m | |
| 142M 0000y - 142M 0110y | 🟠-🟠🟠🟠-🟠 | Moderately Tight (601 m) | 510 m → 680 m | |
| 142M 0110y - 142M 0220y | 🟠-🟠🟠🟠-🟠 | Moderately Tight (586 m) | 452 m → 684 m | |
| 142M 0220y - 142M 0330y | 🟠-🟠🟠🟠-🟠 | Moderately Tight (713 m) | ||
| 142M 0330y - 142M 0440y | 🟠-🟡🟡🟡-🟡 | Moderate (775 m) | 686 m → 883 m | |
| 142M 0440y - 142M 0550y | 🟡-🟡🟡🟡-🟡 | Moderate (975 m) | ||
| 142M 0550y - 142M 0660y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 142M 0660y - 142M 0770y | 🟠-🟠🟠🟠-🟠 | Tight (406 m) | 370 m → 445 m | |
| 142M 0770y - 142M 0880y | 🟠-🟠🟠🟠-🟠 | Moderately Tight (534 m) | ||
| 142M 0880y - 142M 0990y | 🟠-🟠🟠🟠-🟠 | Moderately Tight (505 m) | 453 m → 560 m | |
| 142M 0990y - 142M 1100y | 🟠-🟠🟠🟠-🟠 | Tight (480 m) | 374 m → 602 m | |
| 142M 1100y - 142M 1210y | 🟠-🟡🟡🟡-🟣 | Moderate (1,003 m) | 733 m → 1,874 m | |
| 142M 1210y - 142M 1320y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 142M 1320y - 142M 1430y | 🟠-🟠🟠🟠-🟡 | Moderately Tight (743 m) | 726 m → 760 m | |
| 142M 1430y - 142M 1540y | 🟡-🟡🟡🟡-🟡 | Moderate (871 m) | ||
| 142M 1540y - 142M 1650y | 🟡-🟡🟡🟡-🟡 | Moderate (1,150 m) | ||
| 142M 1650y - 143M 0000y | 🟠-🟡🟡🟡-🟡 | Moderate (762 m) | 672 m → 891 m | |
| 143M 0000y - 143M 0110y | 🟡-🟡🟡🟡-🟡 | Moderate (1,075 m) | Cromford Viaduct | |
| 143M 0110y - 143M 0220y | 🟣-🟣🟣🟣-🟣 | Moderate (1,685 m) | Cromford Viaduct; CROMFORD | |
| 143M 0220y - 143M 0330y | 🟡-🟣🟣🟣-🟣 | Moderate (1,388 m) | 1,224 m → 1,556 m | CROMFORD; Willersley Tunnel |
| 143M 0330y - 143M 0440y | ⚪-⚪⚪⚪-⚪ | Straight | Willersley Tunnel | |
| 143M 0440y - 143M 0550y | ⚪-⚪⚪⚪-⚪ | Straight | Willersley Tunnel | |
| 143M 0550y - 143M 0660y | ⚪-⚪⚪⚪-⚪ | Straight | Willersley Tunnel | |
| 143M 0660y - 143M 0770y | ⚪-⚪⚪⚪-⚪ | Straight | Willersley Tunnel | |
| 143M 0770y - 143M 0880y | ⚪-⚪⚪⚪-⚪ | Straight | Willersley Tunnel | |
| 143M 0880y - 143M 0990y | ⚪-⚪⚪⚪-⚪ | Straight | Willersley Tunnel | |
| 143M 0990y - 143M 1100y | 🟠-🟠🟠🟠-🟡 | Moderately Tight (695 m) | 572 m → 985 m | Willersley Tunnel |
| 143M 1100y - 143M 1210y | 🟠-🟠🟠🟠-🟠 | Moderately Tight (543 m) | 517 m → 566 m | |
| 143M 1210y - 143M 1320y | 🟡-🟡🟡🟡-🟡 | Moderate (873 m) | ||
| 143M 1320y - 143M 1430y | 🔵-🔵🔵🔵-🔵 | Moderately Flat (2,740 m) | ||
| 143M 1430y - 143M 1540y | ⚪-⚪⚪⚪-⚪ | Straight | MATLOCK BATH | |
| 143M 1540y - 143M 1650y | 🟠-🟡🟡🟡-🟣 | Moderate (946 m) | 656 m → 1,855 m | MATLOCK BATH |
| 143M 1650y - 144M 0000y | 🟠-🟠🟠🟠-🟣 | Moderately Tight (693 m) | 385 m → 1,966 m | |
| 144M 0000y - 144M 0110y | 🟡-🟡🟡🟡-🟡 | Moderate (763 m) | ||
| 144M 0110y - 144M 0220y | 🟠-🟠🟠🟠-🟠 | Moderately Tight (532 m) | 492 m → 576 m | High Tor No.1 Tunnel |
| 144M 0220y - 144M 0330y | ⭕-🟠🟠🟠-🟣 | Moderately Tight (640 m) | 225 m → 1,352 m | High Tor No.1 Tunnel |
| 144M 0330y - 144M 0440y | 🟡-🟡🟡🟡-🟡 | Moderate (1,189 m) | High Tor No.1 Tunnel | |
| 144M 0440y - 144M 0550y | 🟠-🟠🟠🟠-🟠 | Tight (388 m) | High Tor No.1 Tunnel; High Tor No.2 Tunnel | |
| 144M 0550y - 144M 0660y | 🟠-🟠🟠🟠-🟡 | Moderately Tight (592 m) | 383 m → 950 m | High Tor No.2 Tunnel |
| 144M 0660y - 144M 0770y | 🟡-🟡🟡🟡-🟡 | Moderate (989 m) | High Tor No.2 Tunnel | |
| 144M 0770y - 144M 0880y | 🟣-🟣🟣🟣-🟣 | Moderate (1,892 m) | High Tor No.2 Tunnel | |
| 144M 0880y - 144M 0990y | 🟠-🟠🟠🟠-🟠 | Tight (424 m) | High Tor No.2 Tunnel | |
| 144M 0990y - 144M 1100y | 🟠-🟠🟠🟠-🟠 | Tight (452 m) | 388 m → 537 m | |
| 144M 1100y - 144M 1210y | 🔴-🟠🟠🟠-🟠 | Tight (364 m) | 229 m → 516 m | |
| 144M 1210y - 144M 1320y | 🔴-🟠🟠🟠-🟠 | Tight (412 m) | 343 m → 465 m | |
| 144M 1320y - 144M 1430y | ⚪-⚪⚪⚪-⚪ | Straight | Holt Lane Tunnel | |
| 144M 1430y - 144M 1540y | ⚪-⚪⚪⚪-⚪ | Straight | Holt Lane Tunnel | |
| 144M 1540y - 144M 1650y | ⭕-🟠🟠🟠-🟠 | Tight (370 m) | 214 m → 535 m | Holt Lane Tunnel |
| 144M 1650y - 145M 0000y | 🟠-🟠🟠🟠-🟠 | Moderately Tight (571 m) | MATLOCK RIVERSIDE | |
| 145M 0000y - 145M 0110y | ⭕-🟠🟠🟠-⚪ | Moderately Tight (502 m) | 144 m → Straight | MATLOCK RIVERSIDE |
| 145M 0110y - 145M 0220y | ⭕-⭕⭕⭕-🔴 | Extremely Tight (190 m) | 113 m → 270 m | |
| 145M 0220y - 145M 0330y | 🟢-🟢🟢🟢-🟢 | Very Flat (6,126 m) | ||
| 145M 0330y - 145M 0440y | ⭕-🟠🟠🟠-🟢 | Moderately Tight (568 m) | 118 m → 16,136 m | |
| 145M 0440y - 145M 0550y | 🟠-🟡🟡🟡-🟢 | Moderate (1,041 m) | 500 m → 10,729 m | |
| 145M 0550y - 145M 0632y | 🟣-🟣🟣🟣-🟣 | Moderate (1,694 m) |