Horizontal curvature for ELR NPF 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 |
|---|---|---|---|---|
| 283M 0156y - 283M 0220y | 🔴-🟠🟠🟠-🟡 | Moderately Tight (642 m) | 335 m → 1,179 m | |
| 283M 0220y - 283M 0330y | ⭕-🟡🟡🟡-⚪ | Moderate (1,153 m) | 198 m → Straight | |
| 283M 0330y - 283M 0440y | 🔵-🟢🟢🟢-⚪ | Very Flat (6,254 m) | 2,257 m → Straight | |
| 283M 0440y - 283M 0550y | ⭕-🟠🟠🟠-⚪ | Moderately Tight (678 m) | 108 m → Straight | |
| 283M 0550y - 283M 0660y | ⭕-⭕⭕⭕-⚪ | Extremely Tight (217 m) | <100 m → Straight | |
| 283M 0660y - 283M 0770y | ⭕-🟠🟠🟠-⚪ | Moderately Tight (575 m) | <100 m → Straight | Letterston Jn |
| 283M 0770y - 283M 0880y | 🔵-🔵🔵🔵-🔵 | Flat (4,820 m) | ||
| 283M 0880y - 283M 0990y | 🟠-🟡🟡🟡-⚪ | Moderate (1,187 m) | 439 m → Straight | |
| 283M 0990y - 283M 1100y | 🟡-🟣🟣🟣-🟣 | Moderate (1,276 m) | 1,101 m → 1,439 m | |
| 283M 1100y - 283M 1210y | 🟠-🟣🟣🟣-🟢 | Moderate (1,540 m) | 710 m → 9,977 m | |
| 283M 1210y - 283M 1320y | 🟠-🟣🟣🟣-🔵 | Moderate (1,362 m) | 652 m → 4,992 m | |
| 283M 1320y - 283M 1430y | 🔴-🟡🟡🟡-🔵 | Moderate (833 m) | 256 m → 3,254 m | |
| 283M 1430y - 283M 1540y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 283M 1540y - 283M 1650y | 🔴-🟣🟣🟣-🟢 | Moderate (1,429 m) | 262 m → 12,631 m | |
| 283M 1650y - 284M 0000y | 🟡-🟣🟣🟣-🟢 | Moderate (1,960 m) | 821 m → 5,726 m | |
| 284M 0000y - 284M 0110y | 🟠-🟠🟠🟠-🟠 | Moderately Tight (506 m) | 369 m → 685 m | |
| 284M 0110y - 284M 0220y | 🟠-🟠🟠🟠-🟠 | Moderately Tight (536 m) | 436 m → 682 m | |
| 284M 0220y - 284M 0330y | 🟠-🟠🟠🟠-🟠 | Moderately Tight (576 m) | 491 m → 709 m | |
| 284M 0330y - 284M 0440y | 🟠-🟠🟠🟠-🟠 | Moderately Tight (519 m) | 376 m → 692 m | |
| 284M 0440y - 284M 0550y | 🟠-🟠🟠🟠-🟠 | Moderately Tight (570 m) | 462 m → 692 m | |
| 284M 0550y - 284M 0660y | 🟠-🟣🟣🟣-⚪ | Moderate (1,906 m) | 589 m → Straight | |
| 284M 0660y - 284M 0770y | 🟠-🟠🟠🟠-🟣 | Moderately Tight (733 m) | 521 m → 1,799 m | |
| 284M 0770y - 284M 0880y | 🔴-🟠🟠🟠-🟠 | Moderately Tight (503 m) | 266 m → 666 m | |
| 284M 0880y - 284M 0990y | 🟠-🟠🟠🟠-🟠 | Moderately Tight (609 m) | 547 m → 746 m | |
| 284M 0990y - 284M 1100y | 🟠-🟣🟣🟣-🟢 | Moderate (1,899 m) | 656 m → 5,500 m | |
| 284M 1100y - 284M 1210y | 🔵-🔵🔵🔵-🟢 | Flat (4,589 m) | 2,669 m → 5,417 m | |
| 284M 1210y - 284M 1320y | 🔵-🔵🔵🔵-🟢 | Flat (3,336 m) | 2,070 m → 10,287 m | |
| 284M 1320y - 284M 1430y | 🟠-🟡🟡🟡-🟡 | Moderate (790 m) | 462 m → 1,078 m | |
| 284M 1430y - 284M 1540y | 🟡-🟡🟡🟡-🟣 | Moderate (1,084 m) | 750 m → 1,747 m | |
| 284M 1540y - 284M 1650y | 🟡-🟣🟣🟣-🔵 | Moderate (1,624 m) | 1,197 m → 2,612 m | |
| 284M 1650y - 285M 0000y | 🟡-🟣🟣🟣-🟣 | Moderate (1,359 m) | 922 m → 1,756 m | |
| 285M 0000y - 285M 0110y | 🟣-🟣🟣🟣-🟣 | Moderate (1,526 m) | 1,326 m → 1,768 m | |
| 285M 0110y - 285M 0220y | 🟡-🟣🟣🟣-🔵 | Moderate (1,475 m) | 984 m → 2,620 m | |
| 285M 0220y - 285M 0330y | 🟡-🟣🟣🟣-🔵 | Moderate (1,496 m) | 793 m → 2,537 m | |
| 285M 0330y - 285M 0440y | 🟡-🟣🟣🟣-🔵 | Moderate (1,282 m) | 939 m → 2,089 m | |
| 285M 0440y - 285M 0550y | 🟡-🟣🟣🟣-🔵 | Moderate (1,837 m) | 890 m → 4,799 m | |
| 285M 0550y - 285M 0660y | 🟡-🟣🟣🟣-🟢 | Moderate (1,931 m) | 1,132 m → 11,581 m | |
| 285M 0660y - 285M 0770y | 🟠-🟡🟡🟡-🟡 | Moderate (880 m) | 616 m → 1,250 m | |
| 285M 0770y - 285M 0880y | 🟠-🟡🟡🟡-🟡 | Moderate (756 m) | 604 m → 908 m | |
| 285M 0880y - 285M 0990y | 🟠-🟠🟠🟠-🟡 | Moderately Tight (699 m) | 473 m → 805 m | |
| 285M 0990y - 285M 1100y | 🟠-🟡🟡🟡-🟡 | Moderate (763 m) | 636 m → 962 m | |
| 285M 1100y - 285M 1210y | 🟠-🔵🔵🔵-🟢 | Moderately Flat (2,680 m) | 743 m → 8,344 m | |
| 285M 1210y - 285M 1320y | 🟠-🟠🟠🟠-🟡 | Moderately Tight (673 m) | 401 m → 1,187 m | |
| 285M 1320y - 285M 1430y | 🟠-🟠🟠🟠-🟠 | Moderately Tight (567 m) | 526 m → 613 m | |
| 285M 1430y - 285M 1540y | 🔴-🟠🟠🟠-🟡 | Moderately Tight (533 m) | 314 m → 861 m | |
| 285M 1540y - 285M 1650y | 🔴-🟠🟠🟠-🟡 | Moderately Tight (548 m) | 338 m → 762 m | |
| 285M 1650y - 286M 0000y | 🔴-🟠🟠🟠-🟠 | Moderately Tight (551 m) | 298 m → 716 m | |
| 286M 0000y - 286M 0110y | 🔴-🟠🟠🟠-🟠 | Moderately Tight (545 m) | 325 m → 730 m | |
| 286M 0110y - 286M 0220y | 🟠-🟡🟡🟡-🔵 | Moderate (1,122 m) | 623 m → 4,589 m | |
| 286M 0220y - 286M 0330y | 🔵-🟢🟢🟢-⚪ | Very Flat (6,394 m) | 2,600 m → Straight | |
| 286M 0330y - 286M 0440y | 🟢-🟢🟢🟢-🟢 | Very Flat (6,438 m) | 5,062 m → 8,238 m | |
| 286M 0440y - 286M 0550y | 🟠-🟣🟣🟣-🟢 | Moderate (1,708 m) | 600 m → 7,354 m | |
| 286M 0550y - 286M 0660y | 🟠-🟡🟡🟡-🟡 | Moderate (808 m) | 604 m → 1,013 m | |
| 286M 0660y - 286M 0770y | 🟠-🟠🟠🟠-🟡 | Moderately Tight (693 m) | 433 m → 1,098 m | |
| 286M 0770y - 286M 0880y | 🟠-🟠🟠🟠-🟣 | Moderately Tight (727 m) | 484 m → 1,286 m | |
| 286M 0880y - 286M 0990y | 🟠-🟠🟠🟠-🟡 | Moderately Tight (737 m) | 566 m → 1,073 m | |
| 286M 0990y - 286M 1100y | 🟠-🟠🟠🟠-🟡 | Moderately Tight (680 m) | 461 m → 973 m | |
| 286M 1100y - 286M 1210y | 🟠-🟡🟡🟡-🔵 | Moderate (809 m) | 556 m → 2,064 m | |
| 286M 1210y - 286M 1320y | 🟠-🟡🟡🟡-🔵 | Moderate (1,062 m) | 465 m → 4,521 m | |
| 286M 1320y - 286M 1430y | 🟡-🔵🔵🔵-⚪ | Moderately Flat (2,039 m) | 778 m → Straight | |
| 286M 1430y - 286M 1540y | 🟠-🟡🟡🟡-🟡 | Moderate (789 m) | 526 m → 1,027 m | |
| 286M 1540y - 286M 1650y | 🟠-🟠🟠🟠-🟡 | Moderately Tight (694 m) | 358 m → 928 m | |
| 286M 1650y - 287M 0000y | 🟠-🟡🟡🟡-⚪ | Moderate (1,026 m) | 414 m → Straight | |
| 287M 0000y - 287M 0110y | 🔵-🟢🟢🟢-⚪ | Very Flat (8,568 m) | 3,700 m → Straight | |
| 287M 0110y - 287M 0220y | 🟠-🟠🟠🟠-🔵 | Moderately Tight (692 m) | 428 m → 2,454 m | |
| 287M 0220y - 287M 0330y | 🔴-🟠🟠🟠-🟠 | Moderately Tight (511 m) | 297 m → 638 m | |
| 287M 0330y - 287M 0440y | 🟠-🟠🟠🟠-🟡 | Moderately Tight (633 m) | 405 m → 1,151 m | |
| 287M 0440y - 287M 0550y | 🟠-🟡🟡🟡-🟢 | Moderate (1,190 m) | 459 m → 6,736 m | |
| 287M 0550y - 287M 0660y | 🟠-🟡🟡🟡-🔵 | Moderate (862 m) | 494 m → 2,876 m | |
| 287M 0660y - 287M 0770y | 🟠-🟡🟡🟡-🔵 | Moderate (1,022 m) | 371 m → 2,593 m | |
| 287M 0770y - 287M 0880y | 🟡-🔵🔵🔵-⚪ | Moderately Flat (2,528 m) | 917 m → Straight | |
| 287M 0880y - 287M 0990y | 🔵-🔵🔵🔵-⚪ | Flat (4,675 m) | 2,777 m → Straight | |
| 287M 0990y - 287M 1100y | 🟠-🟣🟣🟣-⚪ | Moderate (1,259 m) | 679 m → Straight | FISHGUARD & GOODWICK |
| 287M 1100y - 287M 1176y | ⭕-⭕⭕⭕-⚪ | Extremely Tight (141 m) | <100 m → Straight | FISHGUARD & GOODWICK |