Horizontal curvature for ELR BAC3 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 |
|---|---|---|---|
| 149M 0503y - 149M 0550y | ⚪-⚪⚪⚪-⚪ | Straight | Straight |
| 149M 0550y - 149M 0660y | ⚪-⚪⚪⚪-⚪ | Straight | Straight |
| 149M 0660y - 149M 0770y | ⚫-⚪⚪⚪-⚪ | Straight | Extremely Flat (23,762 m) to Straight |
| 149M 0770y - 149M 0880y | 🟠-🟠🟠🟠-🟠 | Tight (386 m) | Tight (386 m) |
| 149M 0880y - 149M 0990y | ⭕-🟠🟠🟠-⚪ | Tight (490 m) | Extremely Tight (218 m) to Straight |
| 149M 0990y - 149M 1100y | ⚪-⚪⚪⚪-⚪ | Straight | Straight |
| 149M 1100y - 149M 1210y | 🟠-🟠🟠🟠-🟠 | Tight (468 m) | Tight (468 m) |
| 149M 1210y - 149M 1320y | 🟠-🟠🟠🟠-⚪ | Moderately Tight (506 m) | Tight (360 m) to Straight |
| 149M 1320y - 149M 1430y | 🟠-🟠🟠🟠-🟠 | Tight (497 m) | Tight (497 m) |
| 149M 1430y - 149M 1540y | 🟠-🟠🟠🟠-🟠 | Moderately Tight (510 m) | Tight (404 m) to Moderately Tight (637 m) |
| 149M 1540y - 149M 1650y | 🟠-🟠🟠🟠-🟠 | Tight (419 m) | Tight (400 m to 435 m) |
| 149M 1650y - 150M 0000y | 🟠-🟠🟠🟠-🟠 | Moderately Tight (618 m) | Moderately Tight (618 m) |
| 150M 0000y - 150M 0110y | ⚪-⚪⚪⚪-⚪ | Straight | Straight |
| 150M 0110y - 150M 0220y | ⚪-⚪⚪⚪-⚪ | Straight | Straight |
| 150M 0220y - 150M 0330y | ⚪-⚪⚪⚪-⚪ | Straight | Straight |
| 150M 0330y - 150M 0440y | ⚪-⚪⚪⚪-⚪ | Straight | Straight |
| 150M 0440y - 150M 0550y | ⚪-⚪⚪⚪-⚪ | Straight | Straight |
| 150M 0550y - 150M 0660y | 🟢-🟢🟢🟢-🟢 | Very Flat (5,043 m) | Very Flat (5,043 m) |
| 150M 0660y - 150M 0770y | 🟣-🟣🟣🟣-🟣 | Moderate (1,253 m) | Moderate (1,253 m) |
| 150M 0770y - 150M 0880y | 🟠-🟠🟠🟠-🟠 | Tight (486 m) | Tight (486 m) |
| 150M 0880y - 150M 0990y | 🟠-🟠🟠🟠-🟠 | Tight (406 m) | Tight (406 m) |
| 150M 0990y - 150M 1100y | 🟠-🟠🟠🟠-🟠 | Tight (426 m) | Tight (426 m) |
| 150M 1100y - 150M 1210y | 🟠-🟠🟠🟠-🟠 | Tight (418 m) | Tight (418 m) |
| 150M 1210y - 150M 1320y | 🟠-🟠🟠🟠-🟡 | Moderately Tight (586 m) | Tight (441 m) to Moderate (774 m) |
| 150M 1320y - 150M 1430y | 🟠-🟠🟠🟠-🟠 | Moderately Tight (559 m) | Tight (493 m) to Moderately Tight (663 m) |
| 150M 1430y - 150M 1540y | 🟠-🟠🟠🟠-🟠 | Moderately Tight (537 m) | Moderately Tight (537 m) |
| 150M 1540y - 150M 1650y | 🟠-🟠🟠🟠-🟠 | Moderately Tight (570 m) | Tight (492 m) to Moderately Tight (695 m) |
| 150M 1650y - 151M 0000y | 🟡-🟣🟣🟣-⚪ | Moderate (1,348 m) | Moderate (1,025 m) to Straight |
| 151M 0000y - 151M 0110y | 🟠-🟠🟠🟠-🟠 | Moderately Tight (516 m) | Moderately Tight (516 m) |
| 151M 0110y - 151M 0220y | 🟠-🟠🟠🟠-🟠 | Moderately Tight (555 m) | Tight (486 m) to Moderately Tight (651 m) |
| 151M 0220y - 151M 0330y | 🟠-🟠🟠🟠-🟠 | Moderately Tight (535 m) | Moderately Tight (535 m) |
| 151M 0330y - 151M 0440y | 🟠-🟠🟠🟠-⚪ | Moderately Tight (700 m) | Moderately Tight (520 m) to Straight |
| 151M 0440y - 151M 0550y | 🟡-🟡🟡🟡-🟡 | Moderate (823 m) | Moderate (823 m) |
| 151M 0550y - 151M 0660y | 🟡-🟡🟡🟡-🟡 | Moderate (902 m) | Moderate (902 m) |
| 151M 0660y - 151M 0770y | 🟠-🟡🟡🟡-🟢 | Moderate (1,173 m) | Tight (374 m) to Very Flat (5,251 m) |
| 151M 0770y - 151M 0880y | 🟠-🟠🟠🟠-🟡 | Moderately Tight (630 m) | Tight (389 m) to Moderate (1,004 m) |
| 151M 0880y - 151M 0990y | 🟠-🟠🟠🟠-🟠 | Moderately Tight (614 m) | Moderately Tight (509 m to 726 m) |
| 151M 0990y - 151M 1100y | 🟠-🟠🟠🟠-🟠 | Moderately Tight (562 m) | Moderately Tight (562 m) |
| 151M 1100y - 151M 1210y | 🟠-🟠🟠🟠-🟠 | Tight (484 m) | Tight (484 m) |
| 151M 1210y - 151M 1320y | 🟠-🟠🟠🟠-🟠 | Tight (485 m) | Tight (429 m) to Moderately Tight (532 m) |
| 151M 1320y - 151M 1430y | 🟣-🔵🔵🔵-⚪ | Flat (3,464 m) | Moderate (1,906 m) to Straight |
| 151M 1430y - 151M 1540y | ⚪-⚪⚪⚪-⚪ | Straight | Straight |
| 151M 1540y - 151M 1650y | ⚪-⚪⚪⚪-⚪ | Straight | Straight |
| 151M 1650y - 152M 0000y | ⚪-⚪⚪⚪-⚪ | Straight | Straight |
| 152M 0000y - 152M 0110y | ⚪-⚪⚪⚪-⚪ | Straight | Straight |
| 152M 0110y - 152M 0220y | ⚪-⚪⚪⚪-⚪ | Straight | Straight |
| 152M 0220y - 152M 0330y | ⚪-⚪⚪⚪-⚪ | Straight | Straight |
| 152M 0330y - 152M 0440y | 🟠-🟡🟡🟡-⚪ | Moderate (1,093 m) | Moderately Tight (628 m) to Straight |
| 152M 0440y - 152M 0550y | 🔴-🟠🟠🟠-🟡 | Tight (471 m) | Very Tight (336 m) to Moderate (958 m) |
| 152M 0550y - 152M 0660y | 🟡-🟡🟡🟡-🟡 | Moderate (825 m) | Moderate (818 m to 838 m) |
| 152M 0660y - 152M 0770y | 🟡-🟡🟡🟡-🟡 | Moderate (1,108 m) | Moderate (1,108 m) |
| 152M 0770y - 152M 0880y | 🟠-🟡🟡🟡-⚪ | Moderate (752 m) | Moderately Tight (601 m) to Straight |
| 152M 0880y - 152M 0990y | 🟠-🟠🟠🟠-🟠 | Moderately Tight (734 m) | Moderately Tight (734 m) |
| 152M 0990y - 152M 1100y | 🟠-🟠🟠🟠-🟠 | Moderately Tight (636 m) | Moderately Tight (617 m to 649 m) |
| 152M 1100y - 152M 1210y | 🟡-🟡🟡🟡-🟡 | Moderate (1,190 m) | Moderate (1,190 m) |
| 152M 1210y - 152M 1320y | 🟣-🟣🟣🟣-🟣 | Moderate (1,378 m) | Moderate (1,261 m to 1,511 m) |
| 152M 1320y - 152M 1430y | 🟡-🟡🟡🟡-⚪ | Moderate (1,104 m) | Moderate (753 m) to Straight |
| 152M 1430y - 152M 1540y | 🟠-🟠🟠🟠-🟠 | Moderately Tight (651 m) | Moderately Tight (588 m to 732 m) |
| 152M 1540y - 152M 1650y | 🟠-🟠🟠🟠-🟡 | Moderately Tight (725 m) | Moderately Tight (575 m) to Moderate (911 m) |
| 152M 1650y - 153M 0000y | ⚪-⚪⚪⚪-⚪ | Straight | Straight |
| 153M 0000y - 153M 0110y | 🔵-🔵🔵🔵-🔵 | Flat (3,926 m) | Flat (3,926 m) |
| 153M 0110y - 153M 0220y | 🟡-🟡🟡🟡-🟡 | Moderate (899 m) | Moderate (899 m) |
| 153M 0220y - 153M 0330y | 🟡-🟡🟡🟡-🟡 | Moderate (988 m) | Moderate (988 m) |
| 153M 0330y - 153M 0440y | ⚪-⚪⚪⚪-⚪ | Straight | Straight |
| 153M 0440y - 153M 0550y | ⚪-⚪⚪⚪-⚪ | Straight | Straight |
| 153M 0550y - 153M 0660y | ⚪-⚪⚪⚪-⚪ | Straight | Straight |
| 153M 0660y - 153M 0770y | ⚪-⚪⚪⚪-⚪ | Straight | Straight |
| 153M 0770y - 153M 0880y | ⚪-⚪⚪⚪-⚪ | Straight | Straight |
| 153M 0880y - 153M 0990y | 🟢-🟢🟢🟢-🟢 | Very Flat (9,766 m) | Very Flat (9,766 m) |
| 153M 0990y - 153M 1100y | ⚪-⚪⚪⚪-⚪ | Straight | Straight |
| 153M 1100y - 153M 1210y | 🟢-🟢🟢🟢-🟢 | Very Flat (6,068 m) | Very Flat (6,068 m) |
| 153M 1210y - 153M 1320y | 🟣-🟣🟣🟣-⚪ | Moderate (1,902 m) | Moderate (1,461 m) to Straight |
| 153M 1320y - 153M 1430y | 🟠-🟠🟠🟠-🟡 | Moderately Tight (740 m) | Tight (402 m) to Moderate (964 m) |
| 153M 1430y - 153M 1540y | 🟠-🟡🟡🟡-🟡 | Moderate (901 m) | Moderately Tight (698 m) to Moderate (1,127 m) |
| 153M 1540y - 153M 1650y | 🟠-🟠🟠🟠-🟠 | Moderately Tight (700 m) | Moderately Tight (658 m to 738 m) |
| 153M 1650y - 154M 0000y | 🟠-🟡🟡🟡-🔵 | Moderate (1,127 m) | Moderately Tight (535 m) to Moderately Flat (2,294 m) |
| 154M 0000y - 154M 0110y | 🟠-🟣🟣🟣-⚫ | Moderate (1,393 m) | Moderately Tight (737 m) to Extremely Flat (46,940 m) |
| 154M 0110y - 154M 0220y | 🟡-🟡🟡🟡-🟡 | Moderate (1,008 m) | Moderate (1,008 m) |
| 154M 0220y - 154M 0330y | 🟡-🟡🟡🟡-🟡 | Moderate (883 m) | Moderate (883 m) |
| 154M 0330y - 154M 0440y | 🟠-🟠🟠🟠-🟡 | Moderately Tight (583 m) | Tight (387 m) to Moderate (1,042 m) |
| 154M 0440y - 154M 0550y | 🟠-🟡🟡🟡-⚫ | Moderate (834 m) | Moderately Tight (691 m) to Extremely Flat (29,100 m) |
| 154M 0550y - 154M 0660y | 🟡-🟡🟡🟡-🟡 | Moderate (1,095 m) | Moderate (1,095 m) |
| 154M 0660y - 154M 0770y | ⚪-⚪⚪⚪-⚪ | Straight | Straight |
| 154M 0770y - 154M 0880y | 🟡-🟡🟡🟡-⚪ | Moderate (1,133 m) | Moderate (882 m) to Straight |
| 154M 0880y - 154M 0990y | 🔴-🔴🔴🔴-🔴 | Very Tight (257 m) | Very Tight (246 m to 266 m) |
| 154M 0990y - 154M 1100y | ⭕-🔴🔴🔴-🟠 | Very Tight (226 m) | Extremely Tight (119 m) to Tight (460 m) |
| 154M 1100y - 154M 1210y | 🔴-🔴🔴🔴-🔴 | Very Tight (328 m) | Very Tight (313 m to 347 m) |
| 154M 1210y - 154M 1320y | ⭕-🟠🟠🟠-⚪ | Tight (442 m) | Extremely Tight (162 m) to Straight |
| 154M 1320y - 154M 1430y | ⚪-⚪⚪⚪-⚪ | Straight | Straight |
| 154M 1430y - 154M 1540y | ⚪-⚪⚪⚪-⚪ | Straight | Straight |
| 154M 1540y - 154M 1650y | ⚪-⚪⚪⚪-⚪ | Straight | Straight |
| 154M 1650y - 155M 0000y | ⚪-⚪⚪⚪-⚪ | Straight | Straight |
| 155M 0000y - 155M 0110y | ⭕-🔵🔵🔵-⚪ | Flat (3,143 m) | Extremely Tight (<100 m) to Straight |
| 155M 0110y - 155M 0220y | 🟠-🟣🟣🟣-🟢 | Moderate (1,287 m) | Tight (500 m) to Very Flat (13,642 m) |
| 155M 0220y - 155M 0330y | 🟠-🟣🟣🟣-⚪ | Moderate (1,352 m) | Moderately Tight (536 m) to Straight |
| 155M 0330y - 155M 0440y | ⚪-⚪⚪⚪-⚪ | Straight | Straight |
| 155M 0440y - 155M 0515y | ⚪-⚪⚪⚪-⚪ | Straight | Straight |