Horizontal curvature for ELR BBR 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 |
|---|---|---|---|---|
| 22M 0758y - 22M 0770y | 🔵-⚫⚫⚫-⚪ | Extremely Flat (20,963 m) | 4,233 m → Straight | BARNHAM; Barnham Jn |
| 22M 0770y - 22M 0880y | ⭕-🟠🟠🟠-⚪ | Tight (432 m) | 130 m → Straight | BARNHAM |
| 22M 0880y - 22M 0990y | ⭕-🔴🔴🔴-⚪ | Very Tight (310 m) | 115 m → Straight | |
| 22M 0990y - 22M 1100y | 🔴-🔴🔴🔴-🔴 | Very Tight (324 m) | 317 m → 330 m | |
| 22M 1100y - 22M 1210y | 🔴-🟠🟠🟠-🟡 | Tight (467 m) | 319 m → 805 m | |
| 22M 1210y - 22M 1320y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 22M 1320y - 22M 1430y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 22M 1430y - 22M 1540y | 🟢-🟢🟢🟢-🟢 | Very Flat (8,004 m) | ||
| 22M 1540y - 22M 1650y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 22M 1650y - 23M 0000y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 23M 0000y - 23M 0110y | 🔵-🔵🔵🔵-🔵 | Moderately Flat (2,179 m) | ||
| 23M 0110y - 23M 0220y | 🟡-🟡🟡🟡-🟡 | Moderate (839 m) | ||
| 23M 0220y - 23M 0330y | 🔴-🟠🟠🟠-🟡 | Moderately Tight (626 m) | 268 m → 1,076 m | |
| 23M 0330y - 23M 0440y | 🟠-🟠🟠🟠-🟠 | Moderately Tight (630 m) | ||
| 23M 0440y - 23M 0550y | 🟠-🟠🟠🟠-🟠 | Moderately Tight (738 m) | ||
| 23M 0550y - 23M 0660y | 🟠-🟠🟠🟠-🟠 | Moderately Tight (664 m) | ||
| 23M 0660y - 23M 0770y | 🟠-🟠🟠🟠-🟠 | Moderately Tight (715 m) | ||
| 23M 0770y - 23M 0880y | 🟠-🟡🟡🟡-🟡 | Moderate (777 m) | 540 m → 1,195 m | |
| 23M 0880y - 23M 0990y | 🟣-🟣🟣🟣-🟣 | Moderate (1,336 m) | ||
| 23M 0990y - 23M 1100y | 🟠-🟡🟡🟡-🟡 | Moderate (827 m) | 671 m → 920 m | |
| 23M 1100y - 23M 1210y | 🟡-🟡🟡🟡-🟡 | Moderate (939 m) | ||
| 23M 1210y - 23M 1320y | 🟡-🟡🟡🟡-🟡 | Moderate (857 m) | ||
| 23M 1320y - 23M 1430y | 🟡-🟡🟡🟡-🟡 | Moderate (888 m) | 791 m → 993 m | |
| 23M 1430y - 23M 1540y | 🟡-🟡🟡🟡-🟡 | Moderate (857 m) | ||
| 23M 1540y - 23M 1650y | 🟠-🟠🟠🟠-🟠 | Moderately Tight (719 m) | ||
| 23M 1650y - 24M 0000y | 🔵-🔵🔵🔵-🔵 | Moderately Flat (2,078 m) | ||
| 24M 0000y - 24M 0110y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 24M 0110y - 24M 0220y | ⚫-⚫⚫⚫-⚫ | Extremely Flat (38,513 m) | ||
| 24M 0220y - 24M 0330y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 24M 0330y - 24M 0440y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 24M 0440y - 24M 0550y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 24M 0550y - 24M 0660y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 24M 0660y - 24M 0770y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 24M 0770y - 24M 0880y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 24M 0880y - 24M 0990y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 24M 0990y - 24M 1100y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 24M 1100y - 24M 1210y | 🟢-🟢🟢🟢-🟢 | Very Flat (11,479 m) | ||
| 24M 1210y - 24M 1320y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 24M 1320y - 24M 1430y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 24M 1430y - 24M 1540y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 24M 1540y - 24M 1650y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 24M 1650y - 25M 0000y | 🟡-🟡🟡🟡-🟣 | Moderate (1,238 m) | 1,100 m → 1,412 m | |
| 25M 0000y - 25M 0110y | 🟡-🟡🟡🟡-🟡 | Moderate (1,047 m) | ||
| 25M 0110y - 25M 0220y | 🟡-🟡🟡🟡-🟡 | Moderate (834 m) | 790 m → 867 m | |
| 25M 0220y - 25M 0330y | 🟡-🟡🟡🟡-🟡 | Moderate (1,032 m) | ||
| 25M 0330y - 25M 0440y | 🟡-🟡🟡🟡-🟡 | Moderate (904 m) | ||
| 25M 0440y - 25M 0550y | 🟡-🟡🟡🟡-🟡 | Moderate (884 m) | ||
| 25M 0550y - 25M 0660y | 🟡-🟡🟡🟡-🟡 | Moderate (813 m) | 769 m → 855 m | |
| 25M 0660y - 25M 0770y | 🟡-🟡🟡🟡-🟡 | Moderate (1,220 m) | ||
| 25M 0770y - 25M 0880y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 25M 0880y - 25M 0990y | 🟣-🟣🟣🟣-🟣 | Moderate (1,803 m) | ||
| 25M 0990y - 25M 1100y | 🟠-🟠🟠🟠-🟠 | Tight (417 m) | 386 m → 443 m | |
| 25M 1100y - 25M 1210y | ⭕-🟠🟠🟠-⚪ | Tight (442 m) | <100 m → Straight | |
| 25M 1210y - 25M 1320y | 🟡-🔵🔵🔵-⚪ | Moderately Flat (2,786 m) | 798 m → Straight | |
| 25M 1320y - 25M 1430y | 🟡-🔵🔵🔵-⚪ | Moderately Flat (2,522 m) | 750 m → Straight | BOGNOR REGIS |
| 25M 1430y - 25M 1540y | 🟠-🟡🟡🟡-⚪ | Moderate (789 m) | 491 m → Straight | BOGNOR REGIS |
| 25M 1540y - 25M 1650y | ⚫-⚪⚪⚪-⚪ | Straight | 36,646 m → Straight | BOGNOR REGIS |
| 25M 1650y - 26M 0000y | ⭕-🟢🟢🟢-⚪ | Very Flat (11,636 m) | 140 m → Straight | BOGNOR REGIS |
| 26M 0000y - 26M 0068y | ⚪-⚪⚪⚪-⚪ | Straight |