Horizontal curvature for ELR FSS1 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 |
|---|---|---|---|---|
| 0M -131y - 0M -110y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 0M -110y - 0M 0000y | 🟡-⚪⚪⚪-⚪ | Straight | 804 m → Straight | |
| 0M 0000y - 0M 0110y | ⚪-⚪⚪⚪-⚪ | Straight | LONDON FENCHURCH STREET | |
| 0M 0110y - 0M 0220y | ⚪-⚪⚪⚪-⚪ | Straight | LONDON FENCHURCH STREET | |
| 0M 0220y - 0M 0330y | ⭕-🟠🟠🟠-🟣 | Tight (425 m) | 161 m → 1,445 m | LONDON FENCHURCH STREET |
| 0M 0330y - 0M 0440y | ⭕-🔴🔴🔴-🟠 | Very Tight (280 m) | <100 m → 683 m | |
| 0M 0440y - 0M 0550y | 🔴-🟣🟣🟣-🟢 | Moderate (1,489 m) | 289 m → 5,853 m | |
| 0M 0550y - 0M 0660y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 0M 0660y - 0M 0770y | ⚫-⚫⚫⚫-⚫ | Extremely Flat (23,042 m) | ||
| 0M 0770y - 0M 0880y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 0M 0880y - 0M 0990y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 0M 0990y - 0M 1100y | 🟣-🟣🟣🟣-🟣 | Moderate (1,994 m) | ||
| 0M 1100y - 0M 1210y | 🟠-🟣🟣🟣-🔵 | Moderate (1,415 m) | 523 m → 2,963 m | |
| 0M 1210y - 0M 1320y | ⚪-⚪⚪⚪-⚪ | Straight | Christian Street Jn | |
| 0M 1320y - 0M 1430y | ⭕-🟡🟡🟡-⚪ | Moderate (975 m) | <100 m → Straight | |
| 0M 1430y - 0M 1540y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 0M 1540y - 0M 1650y | 🔵-🔵🔵🔵-🔵 | Moderately Flat (2,195 m) | 2,044 m → 2,296 m | |
| 0M 1650y - 1M 0000y | 🟠-🟡🟡🟡-🟣 | Moderate (1,142 m) | 596 m → 1,838 m | |
| 1M 0000y - 1M 0110y | 🟠-🟡🟡🟡-🟢 | Moderate (974 m) | 607 m → 5,339 m | |
| 1M 0110y - 1M 0220y | 🔴-🟠🟠🟠-🔵 | Moderately Tight (737 m) | 306 m → 2,047 m | |
| 1M 0220y - 1M 0330y | 🟠-🟡🟡🟡-🟣 | Moderate (928 m) | 569 m → 1,335 m | |
| 1M 0330y - 1M 0440y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 1M 0440y - 1M 0550y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 1M 0550y - 1M 0660y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 1M 0660y - 1M 0770y | 🟡-🟡🟡🟡-🟣 | Moderate (1,206 m) | 944 m → 1,523 m | |
| 1M 0770y - 1M 0880y | 🟢-🟢🟢🟢-🟢 | Very Flat (12,294 m) | ||
| 1M 0880y - 1M 0990y | 🟠-🟡🟡🟡-🟡 | Moderate (818 m) | 601 m → 1,116 m | |
| 1M 0990y - 1M 1100y | 🟠-🟡🟡🟡-🟣 | Moderate (764 m) | 521 m → 1,394 m | |
| 1M 1100y - 1M 1210y | ⭕-🔴🔴🔴-🔴 | Very Tight (240 m) | 176 m → 340 m | LIMEHOUSE |
| 1M 1210y - 1M 1320y | 🔴-🟠🟠🟠-🟠 | Tight (391 m) | 308 m → 435 m | LIMEHOUSE |
| 1M 1320y - 1M 1430y | 🔴-🟠🟠🟠-🟠 | Tight (478 m) | 340 m → 589 m | LIMEHOUSE |
| 1M 1430y - 1M 1540y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 1M 1540y - 1M 1650y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 1M 1650y - 2M 0000y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 2M 0000y - 2M 0110y | 🟢-🟢🟢🟢-🟢 | Very Flat (7,664 m) | ||
| 2M 0110y - 2M 0220y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 2M 0220y - 2M 0330y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 2M 0330y - 2M 0440y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 2M 0440y - 2M 0550y | 🟢-🟢🟢🟢-🟢 | Very Flat (6,478 m) | ||
| 2M 0550y - 2M 0660y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 2M 0660y - 2M 0770y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 2M 0770y - 2M 0880y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 2M 0880y - 2M 0990y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 2M 0990y - 2M 1100y | 🟢-🟢🟢🟢-🟢 | Very Flat (9,439 m) | 8,313 m → 10,584 m | |
| 2M 1100y - 2M 1210y | 🟠-🟠🟠🟠-🟡 | Moderately Tight (591 m) | 413 m → 840 m | |
| 2M 1210y - 2M 1320y | ⭕-🟠🟠🟠-🟣 | Tight (386 m) | 201 m → 1,480 m | Gas Factory Jn |
| 2M 1320y - 2M 1430y | ⭕-🔴🔴🔴-🟠 | Very Tight (258 m) | 114 m → 397 m | |
| 2M 1430y - 2M 1540y | ⭕-🔴🔴🔴-🟠 | Very Tight (281 m) | 198 m → 446 m | |
| 2M 1540y - 2M 1650y | ⭕-🟡🟡🟡-🟢 | Moderate (828 m) | 170 m → 11,416 m | |
| 2M 1650y - 3M 0000y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 3M 0000y - 3M 0110y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 3M 0110y - 3M 0220y | 🟣-🟣🟣🟣-🟣 | Moderate (1,299 m) | ||
| 3M 0220y - 3M 0330y | 🟠-🟡🟡🟡-🟡 | Moderate (802 m) | 629 m → 1,106 m | |
| 3M 0330y - 3M 0440y | 🟡-🟡🟡🟡-🟡 | Moderate (887 m) | 756 m → 1,037 m | |
| 3M 0440y - 3M 0550y | 🟡-🟣🟣🟣-🔵 | Moderate (1,362 m) | 752 m → 2,718 m | |
| 3M 0550y - 3M 0660y | 🟡-🟡🟡🟡-🟡 | Moderate (1,083 m) | ||
| 3M 0660y - 3M 0770y | 🟡-🟡🟡🟡-🔵 | Moderate (1,193 m) | 850 m → 2,248 m | |
| 3M 0770y - 3M 0880y | 🟢-🟢🟢🟢-🟢 | Very Flat (17,395 m) | ||
| 3M 0880y - 3M 0990y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 3M 0990y - 3M 1100y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 3M 1100y - 3M 1210y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 3M 1210y - 3M 1320y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 3M 1320y - 3M 1430y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 3M 1430y - 3M 1540y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 3M 1540y - 3M 1650y | 🔵-🔵🔵🔵-🔵 | Flat (4,047 m) | ||
| 3M 1650y - 4M 0000y | 🟣-🟣🟣🟣-🔵 | Moderate (1,859 m) | 1,641 m → 2,402 m | |
| 4M 0000y - 4M 0110y | 🟣-🟣🟣🟣-🟣 | Moderate (1,744 m) | WEST HAM | |
| 4M 0110y - 4M 0220y | ⚪-⚪⚪⚪-⚪ | Straight | WEST HAM | |
| 4M 0220y - 4M 0330y | ⚪-⚪⚪⚪-⚪ | Straight | WEST HAM | |
| 4M 0330y - 4M 0440y | 🔵-🔵🔵🔵-🔵 | Moderately Flat (2,546 m) | ||
| 4M 0440y - 4M 0550y | 🟢-🟢🟢🟢-🟢 | Very Flat (7,146 m) | ||
| 4M 0550y - 4M 0660y | 🔵-🔵🔵🔵-🔵 | Moderately Flat (2,139 m) | ||
| 4M 0660y - 4M 0770y | 🔵-🔵🔵🔵-🔵 | Flat (3,218 m) | ||
| 4M 0770y - 4M 0880y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 4M 0880y - 4M 0990y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 4M 0990y - 4M 1100y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 4M 1100y - 4M 1210y | 🟢-🟢🟢🟢-🟢 | Very Flat (12,820 m) | ||
| 4M 1210y - 4M 1320y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 4M 1320y - 4M 1430y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 4M 1430y - 4M 1540y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 4M 1540y - 4M 1650y | ⚫-⚫⚫⚫-⚫ | Extremely Flat (22,074 m) | ||
| 4M 1650y - 5M 0000y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 5M 0000y - 5M 0110y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 5M 0110y - 5M 0220y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 5M 0220y - 5M 0330y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 5M 0330y - 5M 0440y | 🟢-🟢🟢🟢-🟢 | Very Flat (7,914 m) | ||
| 5M 0440y - 5M 0550y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 5M 0550y - 5M 0660y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 5M 0660y - 5M 0770y | 🔵-🔵🔵🔵-🔵 | Moderately Flat (2,172 m) | ||
| 5M 0770y - 5M 0880y | 🔵-🔵🔵🔵-🔵 | Moderately Flat (2,998 m) | ||
| 5M 0880y - 5M 0990y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 5M 0990y - 5M 1100y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 5M 1100y - 5M 1210y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 5M 1210y - 5M 1320y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 5M 1320y - 5M 1430y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 5M 1430y - 5M 1540y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 5M 1540y - 5M 1650y | 🟣-🟣🟣🟣-🟣 | Moderate (1,846 m) | ||
| 5M 1650y - 6M 0000y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 6M 0000y - 6M 0110y | 🟣-🟣🟣🟣-🟣 | Moderate (1,286 m) | ||
| 6M 0110y - 6M 0220y | 🟠-🟡🟡🟡-🟡 | Moderate (832 m) | 543 m → 1,098 m | |
| 6M 0220y - 6M 0330y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 6M 0330y - 6M 0440y | 🟠-🟡🟡🟡-🟡 | Moderate (789 m) | 685 m → 915 m | |
| 6M 0440y - 6M 0550y | 🟠-🟠🟠🟠-🟠 | Moderately Tight (609 m) | ||
| 6M 0550y - 6M 0660y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 6M 0660y - 6M 0770y | 🟠-🟠🟠🟠-🟠 | Moderately Tight (625 m) | ||
| 6M 0770y - 6M 0880y | 🟣-🟣🟣🟣-🔵 | Moderate (1,968 m) | 1,285 m → 4,776 m | |
| 6M 0880y - 6M 0990y | 🟠-🟠🟠🟠-🟣 | Moderately Tight (639 m) | 354 m → 1,971 m | |
| 6M 0990y - 6M 1100y | 🟢-🟢🟢🟢-🟢 | Very Flat (11,752 m) | ||
| 6M 1100y - 6M 1210y | 🟠-🟠🟠🟠-🟠 | Moderately Tight (609 m) | 496 m → 727 m | |
| 6M 1210y - 6M 1320y | ⭕-🟠🟠🟠-⚪ | Moderately Tight (571 m) | 211 m → Straight | |
| 6M 1320y - 6M 1430y | ⭕-🔴🔴🔴-🔴 | Very Tight (280 m) | 204 m → 336 m | |
| 6M 1430y - 6M 1540y | 🟠-🟠🟠🟠-🟠 | Tight (422 m) | 361 m → 614 m | |
| 6M 1540y - 6M 1650y | ⭕-🔴🔴🔴-🟠 | Very Tight (325 m) | 222 m → 710 m | |
| 6M 1650y - 7M 0000y | 🟠-🟠🟠🟠-🟡 | Moderately Tight (696 m) | 555 m → 937 m | |
| 7M 0000y - 7M 0110y | 🟢-⚫⚫⚫-⚪ | Extremely Flat (26,751 m) | 5,160 m → Straight | |
| 7M 0110y - 7M 0136y | ⚪-⚪⚪⚪-⚪ | Straight | Barking Tilbury Line Jn |