Horizontal curvature for ELR CHW2 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 |
|---|---|---|---|---|
| 17M 0446y - 17M 0550y | 🟠-🟠🟠🟠-🟢 | Moderately Tight (738 m) | 422 m → 16,393 m | Walton Old Jn; Arpley Grid Iron Jn South |
| 17M 0550y - 17M 0660y | 🟡-🟡🟡🟡-🔵 | Moderate (1,240 m) | 758 m → 2,911 m | |
| 17M 0660y - 17M 0770y | 🟡-🟡🟡🟡-🟡 | Moderate (761 m) | ||
| 17M 0770y - 17M 0880y | 🟠-🟠🟠🟠-🟡 | Moderately Tight (703 m) | 612 m → 826 m | |
| 17M 0880y - 17M 0990y | 🟡-🟡🟡🟡-🟡 | Moderate (1,093 m) | ||
| 17M 0990y - 17M 1100y | 🟠-🟡🟡🟡-🟡 | Moderate (766 m) | 492 m → 1,137 m | Four Arch Viaduct |
| 17M 1100y - 17M 1210y | 🟡-🟡🟡🟡-🟡 | Moderate (971 m) | Four Arch Viaduct | |
| 17M 1210y - 17M 1320y | 🟣-🟣🟣🟣-🟣 | Moderate (1,611 m) | Three Arch Viaduct | |
| 17M 1320y - 17M 1430y | 🟡-🟡🟡🟡-🟡 | Moderate (1,100 m) | 984 m → 1,230 m | Three Arch Viaduct |
| 17M 1430y - 17M 1540y | 🟡-🟡🟡🟡-🟡 | Moderate (1,246 m) | ||
| 17M 1540y - 17M 1650y | ⭕-🟡🟡🟡-⚪ | Moderate (842 m) | 152 m → Straight | |
| 17M 1650y - 17M 1719y | ⭕-🔴🔴🔴-🟢 | Very Tight (302 m) | <100 m → 8,810 m | Warrington South Jn |