Horizontal curvature for ELR TSJ 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 |
|---|---|---|---|---|
| 11M 0508y - 11M 0550y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 11M 0550y - 11M 0660y | 🟠-🟣🟣🟣-⚪ | Moderate (1,501 m) | 503 m → Straight | |
| 11M 0660y - 11M 0770y | 🔴-🟡🟡🟡-⚪ | Moderate (856 m) | 260 m → Straight | Twickenham Jn |
| 11M 0770y - 11M 0880y | ⭕-🔴🔴🔴-⚪ | Very Tight (318 m) | 182 m → Straight | |
| 11M 0880y - 11M 0990y | 🔴-🟠🟠🟠-🟣 | Tight (455 m) | 248 m → 1,524 m | |
| 11M 0990y - 11M 1100y | ⭕-⭕⭕⭕-⚪ | Extremely Tight (185 m) | <100 m → Straight | |
| 11M 1100y - 11M 1210y | ⭕-⭕⭕⭕-⭕ | Extremely Tight (161 m) | 134 m → 185 m | |
| 11M 1210y - 11M 1320y | ⭕-🔴🔴🔴-🟠 | Very Tight (285 m) | 214 m → 399 m | |
| 11M 1320y - 11M 1430y | 🟠-🟠🟠🟠-🟡 | Moderately Tight (547 m) | 414 m → 883 m | |
| 11M 1430y - 11M 1540y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 11M 1540y - 11M 1650y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 11M 1650y - 12M 0000y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 12M 0000y - 12M 0110y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 12M 0110y - 12M 0220y | ⚪-⚪⚪⚪-⚪ | Straight | Popes Grove Viaduct | |
| 12M 0220y - 12M 0330y | ⚪-⚪⚪⚪-⚪ | Straight | Popes Grove Viaduct; STRAWBERRY HILL | |
| 12M 0330y - 12M 0440y | ⭕-🔴🔴🔴-⚪ | Very Tight (315 m) | 127 m → Straight | Popes Grove Viaduct; STRAWBERRY HILL |
| 12M 0440y - 12M 0550y | 🟠-🟡🟡🟡-🟡 | Moderate (821 m) | 698 m → 942 m | STRAWBERRY HILL |
| 12M 0550y - 12M 0660y | ⚫-⚫⚫⚫-⚫ | Extremely Flat (20,003 m) | STRAWBERRY HILL; Strawberry Hill Jn | |
| 12M 0660y - 12M 0770y | 🔵-⚫⚫⚫-⚪ | Extremely Flat (44,304 m) | 3,550 m → Straight | |
| 12M 0770y - 12M 0880y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 12M 0880y - 12M 0990y | ⚪-⚪⚪⚪-⚪ | Straight | ||
| 12M 0990y - 12M 1100y | 🟡-🟡🟡🟡-🟡 | Moderate (869 m) | ||
| 12M 1100y - 12M 1210y | ⭕-⭕⭕⭕-⚪ | Extremely Tight (151 m) | <100 m → Straight | |
| 12M 1210y - 12M 1264y | 🟡-🟣🟣🟣-⚪ | Moderate (1,423 m) | 750 m → Straight | Shacklegate Jn |