Horizontal curvature for ELR SMS2 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 |
|---|---|---|---|---|
| 7M 0448y - 7M 0550y | 🟣-🟣🟣🟣-⚪ | Moderate (1,840 m) | 1,318 m → Straight | WIMBLEDON |
| 7M 0550y - 7M 0660y | 🔵-🔵🔵🔵-🔵 | Flat (3,480 m) | ||
| 7M 0660y - 7M 0770y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 7M 0770y - 7M 0880y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 7M 0880y - 7M 0990y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 7M 0990y - 7M 1100y | 🟣-🟣🟣🟣-🟣 | Moderate (1,452 m) | ||
| 7M 1100y - 7M 1210y | ⚪-⚪⚪⚪-⚪ | Straight | Wimbledon West Jn | |
| 7M 1210y - 7M 1320y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 7M 1320y - 7M 1430y | ⭕-🟠🟠🟠-⚪ | Tight (364 m) | 114 m → Straight | |
| 7M 1430y - 7M 1540y | ⭕-⭕⭕⭕-⚪ | Extremely Tight (223 m) | 163 m → Straight | |
| 7M 1540y - 7M 1650y | 🟡-🟡🟡🟡-🟡 | Moderate (768 m) | ||
| 7M 1650y - 8M 0000y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 8M 0000y - 8M 0110y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 8M 0110y - 8M 0220y | 🟠-🟠🟠🟠-🟠 | Moderately Tight (578 m) | WIMBLEDON CHASE | |
| 8M 0220y - 8M 0330y | 🔴-🔴🔴🔴-🟠 | Very Tight (312 m) | 264 m → 397 m | WIMBLEDON CHASE |
| 8M 0330y - 8M 0440y | 🔴-🟠🟠🟠-🟠 | Tight (371 m) | 326 m → 411 m | WIMBLEDON CHASE |
| 8M 0440y - 8M 0550y | 🟠-🟠🟠🟠-🟠 | Tight (464 m) | 350 m → 736 m | |
| 8M 0550y - 8M 0660y | 🔵-🔵🔵🔵-🔵 | Moderately Flat (2,084 m) | ||
| 8M 0660y - 8M 0770y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 8M 0770y - 8M 0880y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 8M 0880y - 8M 0990y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 8M 0990y - 8M 1100y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 8M 1100y - 8M 1210y | 🟢-🟢🟢🟢-🟢 | Very Flat (10,828 m) | ||
| 8M 1210y - 8M 1320y | 🟢-🟢🟢🟢-🟢 | Very Flat (9,518 m) | SOUTH MERTON | |
| 8M 1320y - 8M 1430y | ⚪-⚪⚪⚪-⚪ | Straight | SOUTH MERTON | |
| 8M 1430y - 8M 1540y | ⚪-⚪⚪⚪-⚪ | Straight | SOUTH MERTON | |
| 8M 1540y - 8M 1650y | 🟠-🟠🟠🟠-🟠 | Moderately Tight (622 m) | 593 m → 665 m | |
| 8M 1650y - 9M 0000y | 🟠-🟠🟠🟠-🟡 | Moderately Tight (589 m) | 398 m → 766 m | |
| 9M 0000y - 9M 0110y | 🟠-🟠🟠🟠-🟠 | Moderately Tight (533 m) | 351 m → 745 m | |
| 9M 0110y - 9M 0220y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 9M 0220y - 9M 0330y | 🔵-🔵🔵🔵-🔵 | Moderately Flat (2,046 m) | ||
| 9M 0330y - 9M 0440y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 9M 0440y - 9M 0550y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 9M 0550y - 9M 0660y | 🟡-🟡🟡🟡-🟡 | Moderate (1,049 m) | MORDEN SOUTH | |
| 9M 0660y - 9M 0770y | ⚪-⚪⚪⚪-⚪ | Straight | MORDEN SOUTH | |
| 9M 0770y - 9M 0880y | 🟠-🟠🟠🟠-🟠 | Moderately Tight (521 m) | 363 m → 678 m | MORDEN SOUTH |
| 9M 0880y - 9M 0990y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 9M 0990y - 9M 1100y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 9M 1100y - 9M 1210y | 🔴-🟠🟠🟠-🟠 | Tight (364 m) | 255 m → 521 m | |
| 9M 1210y - 9M 1320y | 🔴-🟠🟠🟠-🟠 | Tight (363 m) | 299 m → 442 m | |
| 9M 1320y - 9M 1430y | 🟠-🟠🟠🟠-🟠 | Moderately Tight (708 m) | ||
| 9M 1430y - 9M 1540y | 🟢-🟢🟢🟢-🟢 | Very Flat (6,824 m) | ST HELIER | |
| 9M 1540y - 9M 1650y | ⚪-⚪⚪⚪-⚪ | Straight | ST HELIER | |
| 9M 1650y - 10M 0000y | 🔵-🟢🟢🟢-⚪ | Very Flat (5,433 m) | 2,293 m → Straight | |
| 10M 0000y - 10M 0110y | 🔴-🟠🟠🟠-🟠 | Tight (358 m) | 340 m → 376 m | |
| 10M 0110y - 10M 0220y | 🔴-🔴🔴🔴-🟠 | Very Tight (337 m) | 296 m → 379 m | |
| 10M 0220y - 10M 0330y | 🔴-🟠🟠🟠-🟠 | Tight (379 m) | 327 m → 423 m | |
| 10M 0330y - 10M 0440y | 🔴-🟠🟠🟠-🟠 | Tight (384 m) | 326 m → 531 m | |
| 10M 0440y - 10M 0550y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 10M 0550y - 10M 0660y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 10M 0660y - 10M 0770y | 🔴-🟠🟠🟠-🟠 | Tight (422 m) | 235 m → 644 m | |
| 10M 0770y - 10M 0880y | 🟠-🟠🟠🟠-🟠 | Tight (465 m) | ||
| 10M 0880y - 10M 0990y | 🟠-🟠🟠🟠-🟠 | Moderately Tight (606 m) | ||
| 10M 0990y - 10M 1100y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 10M 1100y - 10M 1210y | 🟣-🟣🟣🟣-🟣 | Moderate (1,631 m) | ||
| 10M 1210y - 10M 1320y | 🟣-🟣🟣🟣-🟣 | Moderate (1,354 m) | ||
| 10M 1320y - 10M 1430y | 🟡-🟡🟡🟡-🟡 | Moderate (857 m) | SUTTON COMMON | |
| 10M 1430y - 10M 1540y | 🔴-🔴🔴🔴-🟠 | Very Tight (306 m) | 242 m → 378 m | SUTTON COMMON |
| 10M 1540y - 10M 1650y | 🔴-🔴🔴🔴-🔴 | Very Tight (300 m) | 281 m → 322 m | SUTTON COMMON |
| 10M 1650y - 11M 0000y | 🔴-🟠🟠🟠-🟠 | Tight (418 m) | 283 m → 645 m | |
| 11M 0000y - 11M 0110y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 11M 0110y - 11M 0220y | 🔴-🟠🟠🟠-🟡 | Tight (443 m) | 270 m → 787 m | |
| 11M 0220y - 11M 0330y | 🔴-🔴🔴🔴-🟠 | Very Tight (311 m) | 256 m → 375 m | |
| 11M 0330y - 11M 0440y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 11M 0440y - 11M 0550y | 🟠-🟠🟠🟠-🟠 | Moderately Tight (533 m) | ||
| 11M 0550y - 11M 0660y | 🔴-🔴🔴🔴-🟠 | Very Tight (342 m) | 318 m → 371 m | |
| 11M 0660y - 11M 0770y | 🔴-🔴🔴🔴-🟠 | Very Tight (298 m) | 240 m → 416 m | |
| 11M 0770y - 11M 0880y | 🔴-🟠🟠🟠-🔵 | Moderately Tight (613 m) | 233 m → 3,558 m | |
| 11M 0880y - 11M 0990y | ⚪-⚪⚪⚪-⚪ | Straight | WEST SUTTON | |
| 11M 0990y - 11M 1100y | 🔴-🟠🟠🟠-🟠 | Tight (455 m) | 332 m → 666 m | WEST SUTTON |
| 11M 1100y - 11M 1210y | ⭕-🔴🔴🔴-🔴 | Very Tight (247 m) | 207 m → 293 m | WEST SUTTON |
| 11M 1210y - 11M 1320y | ⭕-🔴🔴🔴-🔴 | Very Tight (253 m) | 188 m → 329 m | |
| 11M 1320y - 11M 1430y | ⭕-🔴🔴🔴-🔴 | Very Tight (263 m) | 221 m → 313 m | |
| 11M 1430y - 11M 1540y | ⭕-🔴🔴🔴-🔴 | Very Tight (237 m) | 180 m → 292 m | |
| 11M 1540y - 11M 1650y | 🟠-🟠🟠🟠-🟠 | Tight (369 m) | ||
| 11M 1650y - 12M 0000y | 🟠-🟠🟠🟠-🟠 | Tight (438 m) | ||
| 12M 0000y - 12M 0110y | 🟡-🟡🟡🟡-🟡 | Moderate (1,177 m) | ||
| 12M 0110y - 12M 0220y | 🔴-🔴🔴🔴-🔴 | Very Tight (320 m) | ||
| 12M 0220y - 12M 0330y | ⭕-⭕⭕⭕-🔴 | Extremely Tight (214 m) | 137 m → 255 m | |
| 12M 0330y - 12M 0440y | ⭕-⭕⭕⭕-🔴 | Extremely Tight (212 m) | 150 m → 301 m | |
| 12M 0440y - 12M 0550y | ⭕-⭕⭕⭕-🔴 | Extremely Tight (219 m) | 198 m → 236 m | |
| 12M 0550y - 12M 0660y | ⭕-🟠🟠🟠-🟡 | Tight (393 m) | 149 m → 948 m | |
| 12M 0660y - 12M 0770y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 12M 0770y - 12M 0880y | 🟠-🟠🟠🟠-🟠 | Moderately Tight (540 m) | ||
| 12M 0880y - 12M 0949y | 🟠-🟡🟡🟡-⚪ | Moderate (802 m) | 381 m → Straight | Sutton West Jn |