Horizontal curvature for ELR EBW 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 |
|---|---|---|---|---|
| 12M 1266y - 12M 1320y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 12M 1320y - 12M 1430y | 🔵-🔵🔵🔵-🔵 | Moderately Flat (2,553 m) | ||
| 12M 1430y - 12M 1540y | ⭕-⭕⭕⭕-🔴 | Extremely Tight (168 m) | <100 m → 253 m | |
| 12M 1540y - 12M 1650y | 🔴-🔴🔴🔴-🟠 | Very Tight (343 m) | 296 m → 386 m | |
| 12M 1650y - 13M 0000y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 13M 0000y - 13M 0110y | 🟠-🟠🟠🟠-🟠 | Tight (376 m) | 369 m → 404 m | |
| 13M 0110y - 13M 0220y | 🔴-🔴🔴🔴-🔴 | Very Tight (350 m) | ||
| 13M 0220y - 13M 0330y | 🔴-🔴🔴🔴-🟠 | Very Tight (347 m) | 243 m → 499 m | |
| 13M 0330y - 13M 0440y | ⭕-⭕⭕⭕-🔴 | Extremely Tight (211 m) | 141 m → 345 m | |
| 13M 0440y - 13M 0550y | 🔴-🔴🔴🔴-🔴 | Very Tight (322 m) | ||
| 13M 0550y - 13M 0660y | 🔴-🟠🟠🟠-🟡 | Tight (391 m) | 247 m → 992 m | |
| 13M 0660y - 13M 0770y | 🟢-🟢🟢🟢-🟢 | Very Flat (5,276 m) | ||
| 13M 0770y - 13M 0880y | 🟡-🟡🟡🟡-🟡 | Moderate (840 m) | ||
| 13M 0880y - 13M 0990y | ⭕-🔴🔴🔴-🔵 | Very Tight (226 m) | 101 m → 2,240 m | |
| 13M 0990y - 13M 1100y | 🟠-🟠🟠🟠-🟡 | Moderately Tight (659 m) | 477 m → 989 m | |
| 13M 1100y - 13M 1210y | 🟡-🔵🔵🔵-🟢 | Moderately Flat (2,102 m) | 1,178 m → 5,615 m | |
| 13M 1210y - 13M 1320y | 🔵-🔵🔵🔵-🟢 | Flat (3,911 m) | 3,149 m → 5,726 m | |
| 13M 1320y - 13M 1430y | 🔵-🔵🔵🔵-🔵 | Moderately Flat (2,941 m) | 2,379 m → 3,816 m | |
| 13M 1430y - 13M 1540y | ⭕-⭕⭕⭕-🟠 | Extremely Tight (172 m) | <100 m → 486 m | |
| 13M 1540y - 13M 1650y | 🔴-🟠🟠🟠-🔵 | Moderately Tight (519 m) | 273 m → 2,213 m | |
| 13M 1650y - 14M 0000y | 🔴-🔴🔴🔴-🟠 | Very Tight (271 m) | 234 m → 412 m | |
| 14M 0000y - 14M 0110y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 14M 0110y - 14M 0220y | 🟠-🟠🟠🟠-🟠 | Tight (387 m) | ||
| 14M 0220y - 14M 0330y | ⚫-⚫⚫⚫-⚫ | Extremely Flat (20,015 m) | ||
| 14M 0330y - 14M 0440y | ⭕-🟠🟠🟠-🟡 | Tight (351 m) | 124 m → 766 m | |
| 14M 0440y - 14M 0550y | ⭕-🔴🔴🔴-⚪ | Very Tight (254 m) | 123 m → Straight | former Aberbeeg Jn |
| 14M 0550y - 14M 0660y | ⭕-⭕⭕⭕-⚪ | Extremely Tight (182 m) | <100 m → Straight | |
| 14M 0660y - 14M 0770y | ⭕-⭕⭕⭕-⚪ | Extremely Tight (200 m) | 122 m → Straight | |
| 14M 0770y - 14M 0880y | 🔴-🟡🟡🟡-⚪ | Moderate (852 m) | 256 m → Straight | Pantddu Viaduct |
| 14M 0880y - 14M 0990y | ⭕-🔴🔴🔴-⚪ | Very Tight (226 m) | <100 m → Straight | |
| 14M 0990y - 14M 1100y | ⭕-🟠🟠🟠-⚪ | Moderately Tight (537 m) | <100 m → Straight | |
| 14M 1100y - 14M 1210y | 🔴-🟠🟠🟠-⚪ | Moderately Tight (584 m) | 308 m → Straight | |
| 14M 1210y - 14M 1320y | 🔴-🟠🟠🟠-⚪ | Moderately Tight (667 m) | 340 m → Straight | |
| 14M 1320y - 14M 1430y | ⭕-🔴🔴🔴-⚪ | Very Tight (350 m) | 144 m → Straight | |
| 14M 1430y - 14M 1540y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 14M 1540y - 14M 1650y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 14M 1650y - 15M 0000y | ⭕-🟠🟠🟠-⚪ | Moderately Tight (553 m) | 195 m → Straight | |
| 15M 0000y - 15M 0110y | 🟠-🟡🟡🟡-⚪ | Moderate (1,186 m) | 395 m → Straight | |
| 15M 0110y - 15M 0220y | 🟠-🔵🔵🔵-⚪ | Moderately Flat (2,421 m) | 591 m → Straight | |
| 15M 0220y - 15M 0330y | 🔴-🟠🟠🟠-⚪ | Moderately Tight (687 m) | 345 m → Straight | |
| 15M 0330y - 15M 0440y | 🔴-🟠🟠🟠-⚪ | Tight (484 m) | 297 m → Straight | |
| 15M 0440y - 15M 0550y | 🔴-🟠🟠🟠-⚪ | Tight (468 m) | 329 m → Straight | |
| 15M 0550y - 15M 0660y | ⭕-🟠🟠🟠-⚪ | Moderately Tight (595 m) | 150 m → Straight | |
| 15M 0660y - 15M 0770y | 🔴-🟠🟠🟠-⚪ | Moderately Tight (534 m) | 260 m → Straight | |
| 15M 0770y - 15M 0880y | 🟡-🟣🟣🟣-🟣 | Moderate (1,321 m) | 1,002 m → 1,994 m | |
| 15M 0880y - 15M 0990y | ⭕-🟠🟠🟠-⚪ | Tight (415 m) | 126 m → Straight | |
| 15M 0990y - 15M 1100y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 15M 1100y - 15M 1210y | ⭕-🟡🟡🟡-⚪ | Moderate (1,245 m) | 117 m → Straight | |
| 15M 1210y - 15M 1320y | ⭕-🟠🟠🟠-⚪ | Moderately Tight (506 m) | 130 m → Straight | |
| 15M 1320y - 15M 1430y | 🔴-🟠🟠🟠-⚪ | Moderately Tight (560 m) | 344 m → Straight | |
| 15M 1430y - 15M 1540y | ⭕-🟡🟡🟡-⚪ | Moderate (1,051 m) | 102 m → Straight | |
| 15M 1540y - 15M 1650y | 🔴-🟡🟡🟡-🟢 | Moderate (972 m) | 252 m → 6,228 m | |
| 15M 1650y - 16M 0000y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 16M 0000y - 16M 0110y | 🔴-🟠🟠🟠-⚪ | Moderately Tight (535 m) | 293 m → Straight | |
| 16M 0110y - 16M 0220y | 🔴-🟠🟠🟠-⚪ | Moderately Tight (610 m) | 320 m → Straight | |
| 16M 0220y - 16M 0330y | ⭕-🟠🟠🟠-⚪ | Moderately Tight (592 m) | 182 m → Straight | |
| 16M 0330y - 16M 0440y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 16M 0440y - 16M 0550y | 🔴-🟣🟣🟣-⚪ | Moderate (1,431 m) | 347 m → Straight | |
| 16M 0550y - 16M 0660y | 🟠-🟣🟣🟣-⚪ | Moderate (1,360 m) | 690 m → Straight | |
| 16M 0660y - 16M 0770y | 🔵-🟢🟢🟢-⚪ | Very Flat (6,146 m) | 4,469 m → Straight | Cwm Bypass |
| 16M 0770y - 16M 0880y | 🔴-🟠🟠🟠-⚪ | Moderately Tight (664 m) | 268 m → Straight | Cwm Bypass |
| 16M 0880y - 16M 0990y | 🔵-🟢🟢🟢-⚪ | Very Flat (8,736 m) | 4,883 m → Straight | |
| 16M 0990y - 16M 1100y | 🟢-🟢🟢🟢-⚪ | Very Flat (15,425 m) | 7,834 m → Straight | |
| 16M 1100y - 16M 1210y | 🔵-🟢🟢🟢-⚪ | Very Flat (6,430 m) | 4,725 m → Straight | |
| 16M 1210y - 16M 1320y | 🔵-🟢🟢🟢-⚪ | Very Flat (5,306 m) | 2,763 m → Straight | |
| 16M 1320y - 16M 1430y | ⭕-🟡🟡🟡-⚪ | Moderate (1,109 m) | 153 m → Straight | |
| 16M 1430y - 16M 1540y | ⭕-🟠🟠🟠-⚪ | Moderately Tight (657 m) | 193 m → Straight | |
| 16M 1540y - 16M 1650y | 🟡-🟣🟣🟣-⚪ | Moderate (1,435 m) | 855 m → Straight | |
| 16M 1650y - 17M 0000y | 🔴-🟠🟠🟠-⚪ | Moderately Tight (599 m) | 308 m → Straight | |
| 17M 0000y - 17M 0110y | 🟠-🟣🟣🟣-⚪ | Moderate (1,535 m) | 404 m → Straight | |
| 17M 0110y - 17M 0220y | 🔴-🟡🟡🟡-⚪ | Moderate (873 m) | 249 m → Straight | |
| 17M 0220y - 17M 0330y | 🔴-🟡🟡🟡-⚪ | Moderate (928 m) | 316 m → Straight | |
| 17M 0330y - 17M 0440y | 🟠-🟡🟡🟡-⚪ | Moderate (824 m) | 356 m → Straight | |
| 17M 0440y - 17M 0550y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 17M 0550y - 17M 0660y | 🟠-🟡🟡🟡-⚪ | Moderate (1,226 m) | 400 m → Straight | |
| 17M 0660y - 17M 0770y | 🟠-🟡🟡🟡-⚪ | Moderate (972 m) | 533 m → Straight | |
| 17M 0770y - 17M 0880y | 🔴-🟠🟠🟠-⚪ | Moderately Tight (719 m) | 313 m → Straight | |
| 17M 0880y - 17M 0990y | 🟡-🟣🟣🟣-⚪ | Moderate (1,780 m) | 1,184 m → Straight | |
| 17M 0990y - 17M 1100y | 🟡-🔵🔵🔵-⚪ | Moderately Flat (2,186 m) | 1,147 m → Straight | |
| 17M 1100y - 17M 1210y | 🟠-🟣🟣🟣-⚪ | Moderate (1,999 m) | 362 m → Straight | |
| 17M 1210y - 17M 1320y | 🟠-🟣🟣🟣-⚪ | Moderate (1,400 m) | 686 m → Straight | |
| 17M 1320y - 17M 1430y | 🟣-🔵🔵🔵-⚪ | Flat (4,683 m) | 1,837 m → Straight | |
| 17M 1430y - 17M 1540y | 🔴-🔵🔵🔵-⚪ | Moderately Flat (2,167 m) | 324 m → Straight | |
| 17M 1540y - 17M 1650y | ⭕-🟣🟣🟣-⚪ | Moderate (1,382 m) | 165 m → Straight | |
| 17M 1650y - 18M 0000y | 🟠-🟠🟠🟠-⚫ | Moderately Tight (733 m) | 386 m → 32,513 m | |
| 18M 0000y - 18M 0110y | 🟠-🔵🔵🔵-⚪ | Flat (3,251 m) | 748 m → Straight | |
| 18M 0110y - 18M 0220y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 18M 0220y - 18M 0330y | 🔴-🔵🔵🔵-⚪ | Flat (3,437 m) | 263 m → Straight | |
| 18M 0330y - 18M 0440y | 🔵-⚫⚫⚫-⚪ | Extremely Flat (21,834 m) | 3,528 m → Straight | |
| 18M 0440y - 18M 0550y | ⭕-🟠🟠🟠-⚪ | Tight (423 m) | 122 m → Straight | |
| 18M 0550y - 18M 0660y | ⭕-🔴🔴🔴-⚪ | Very Tight (337 m) | 166 m → Straight | |
| 18M 0660y - 18M 0770y | ⭕-🟠🟠🟠-⚪ | Tight (486 m) | <100 m → Straight | EBBW VALE PARKWAY |
| 18M 0770y - 18M 0880y | ⭕-🟠🟠🟠-⚪ | Moderately Tight (522 m) | 174 m → Straight | EBBW VALE PARKWAY |
| 18M 0880y - 18M 0990y | ⭕-🟠🟠🟠-⚪ | Tight (385 m) | 120 m → Straight | |
| 18M 0990y - 18M 1100y | ⭕-🟠🟠🟠-⚪ | Tight (366 m) | 181 m → Straight | |
| 18M 1100y - 18M 1210y | ⭕-🟡🟡🟡-⚪ | Moderate (998 m) | <100 m → Straight | |
| 18M 1210y - 18M 1320y | 🔴-🟡🟡🟡-⚪ | Moderate (910 m) | 299 m → Straight | |
| 18M 1320y - 18M 1430y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 18M 1430y - 18M 1540y | ⭕-🟣🟣🟣-⚪ | Moderate (1,255 m) | <100 m → Straight | |
| 18M 1540y - 18M 1650y | 🟠-🟡🟡🟡-⚪ | Moderate (1,227 m) | 552 m → Straight | |
| 18M 1650y - 19M 0000y | ⭕-🟡🟡🟡-⚪ | Moderate (985 m) | 133 m → Straight | |
| 19M 0000y - 19M 0110y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 19M 0110y - 19M 0220y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 19M 0220y - 19M 0330y | ⭕-🟠🟠🟠-⚪ | Tight (476 m) | 106 m → Straight | |
| 19M 0330y - 19M 0440y | 🔴-🟠🟠🟠-⚪ | Tight (457 m) | 333 m → Straight | |
| 19M 0440y - 19M 0550y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 19M 0550y - 19M 0660y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 19M 0660y - 19M 0770y | 🟡-🟡🟡🟡-🟡 | Moderate (1,133 m) | ||
| 19M 0770y - 19M 0880y | ⭕-🟠🟠🟠-⚪ | Moderately Tight (738 m) | 128 m → Straight | |
| 19M 0880y - 19M 0990y | ⭕-🔴🔴🔴-⚪ | Very Tight (273 m) | <100 m → Straight | |
| 19M 0990y - 19M 1100y | 🟢-🟢🟢🟢-🟢 | Very Flat (8,333 m) | ||
| 19M 1100y - 19M 1210y | ⭕-🟠🟠🟠-⚪ | Tight (382 m) | 108 m → Straight | |
| 19M 1210y - 19M 1320y | ⭕-🔴🔴🔴-⚪ | Very Tight (301 m) | 142 m → Straight | |
| 19M 1320y - 19M 1430y | 🔵-🔵🔵🔵-🔵 | Flat (3,363 m) | ||
| 19M 1430y - 19M 1540y | ⭕-🟣🟣🟣-⚪ | Moderate (1,894 m) | 103 m → Straight | EBBW VALE TOWN |
| 19M 1540y - 19M 1650y | 🟡-🟡🟡🟡-🟡 | Moderate (866 m) | 838 m → 978 m | EBBW VALE TOWN |
| 19M 1650y - 19M 1688y | ⚪-⚪⚪⚪-⚪ | Straight |