Horizontal curvature for ELR PTD 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.

MileageSchematicAverage RadiusRadius Range
0M -592y - 0M -550y ⚪-⚪⚪⚪-⚪ StraightStraight
0M -550y - 0M -440y ⚪-⚪⚪⚪-⚪ StraightStraight
0M -440y - 0M -330y ⚪-⚪⚪⚪-⚪ StraightStraight
0M -330y - 0M -220y ⭕-⭕⭕⭕-🔴 Extremely Tight (212 m)Extremely Tight (167 m) to Very Tight (240 m)
0M -220y - 0M -110y ⭕-⭕⭕⭕-🔴 Extremely Tight (216 m)Extremely Tight (180 m) to Very Tight (235 m)
0M -110y - 0M 0000y ⭕-⭕⭕⭕-🔴 Extremely Tight (195 m)Extremely Tight (105 m) to Very Tight (250 m)
0M 0000y - 0M 0110y ⭕-🟠🟠🟠-🟠 Tight (358 m)Extremely Tight (184 m) to Moderately Tight (536 m)
0M 0110y - 0M 0220y 🔴-🟠🟠🟠-🟠 Tight (370 m)Very Tight (242 m) to Moderately Tight (588 m)
0M 0220y - 0M 0330y 🟠-🟠🟠🟠-🟠 Moderately Tight (726 m)Moderately Tight (726 m)
0M 0330y - 0M 0440y 🟠-🟠🟠🟠-🟠 Tight (436 m)Tight (436 m)
0M 0440y - 0M 0550y ⚪-⚪⚪⚪-⚪ StraightStraight
0M 0550y - 0M 0660y ⚪-⚪⚪⚪-⚪ StraightStraight
0M 0660y - 0M 0770y ⚪-⚪⚪⚪-⚪ StraightStraight
0M 0770y - 0M 0880y ⚪-⚪⚪⚪-⚪ StraightStraight
0M 0880y - 0M 0990y 🔴-🟠🟠🟠-🟠 Tight (430 m)Very Tight (324 m) to Moderately Tight (535 m)
0M 0990y - 0M 1100y ⚪-⚪⚪⚪-⚪ StraightStraight
0M 1100y - 0M 1210y 🔴-🟠🟠🟠-⚪ Moderately Tight (652 m)Very Tight (349 m) to Straight
0M 1210y - 0M 1320y 🟡-🟡🟡🟡-🟡 Moderate (789 m)Moderate (789 m)
0M 1320y - 0M 1430y ⚪-⚪⚪⚪-⚪ StraightStraight
0M 1430y - 0M 1540y ⭕-🟣🟣🟣-⚪ Moderate (1,666 m)Extremely Tight (<100 m) to Straight
0M 1540y - 0M 1650y ⚪-⚪⚪⚪-⚪ StraightStraight
0M 1650y - 0M 1704y ⚪-⚪⚪⚪-⚪ StraightStraight