Horizontal curvature for ELR SJM2 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 |
|---|---|---|---|---|
| 14M 1754y - 15M 0000y | ⚪-⚪⚪⚪-⚪ | Straight | former Swinton Jn | |
| 15M 0000y - 15M 0110y | ⭕-🔴🔴🔴-🟡 | Very Tight (242 m) | 125 m → 787 m | |
| 15M 0110y - 15M 0220y | ⭕-🔴🔴🔴-🟡 | Very Tight (302 m) | 179 m → 849 m | |
| 15M 0220y - 15M 0330y | ⭕-🟠🟠🟠-⚪ | Tight (368 m) | 152 m → Straight | |
| 15M 0330y - 15M 0440y | ⭕-🔴🔴🔴-🟣 | Very Tight (304 m) | 135 m → 1,714 m | |
| 15M 0440y - 15M 0550y | ⭕-🟠🟠🟠-⚪ | Tight (394 m) | 113 m → Straight | |
| 15M 0550y - 15M 0660y | 🔴-🟠🟠🟠-🟠 | Tight (411 m) | 256 m → 576 m | |
| 15M 0660y - 15M 0770y | ⭕-🟠🟠🟠-🟣 | Tight (444 m) | 162 m → 1,471 m | former Mexborough No.1 Jn |
| 15M 0770y - 15M 0880y | 🟢-🟢🟢🟢-🟢 | Very Flat (12,795 m) | ||
| 15M 0880y - 15M 0883y | ⚪-⚪⚪⚪-⚪ | Straight |