Horizontal curvature for ELR NEC1 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 0934y - 0M 0990y 🟠-🟡🟡🟡-🔵 Moderate (1,087 m)Moderately Tight (656 m) to Flat (4,491 m)
0M 0990y - 0M 1100y ⭕-🟠🟠🟠-🔵 Tight (362 m)Extremely Tight (152 m) to Moderately Flat (2,595 m)
0M 1100y - 0M 1210y 🟡-🟣🟣🟣-🔵 Moderate (1,409 m)Moderate (1,014 m) to Moderately Flat (2,908 m)
0M 1210y - 0M 1320y ⭕-🔴🔴🔴-🟠 Very Tight (348 m)Extremely Tight (204 m) to Moderately Tight (542 m)
0M 1320y - 0M 1430y ⚪-⚪⚪⚪-⚪ StraightStraight
0M 1430y - 0M 1540y ⚪-⚪⚪⚪-⚪ StraightStraight
0M 1540y - 0M 1650y ⚪-⚪⚪⚪-⚪ StraightStraight
0M 1650y - 1M 0000y 🟠-🟠🟠🟠-🟠 Moderately Tight (590 m)Moderately Tight (590 m)
1M 0000y - 1M 0110y 🔵-🔵🔵🔵-🔵 Flat (4,410 m)Flat (4,410 m)
1M 0110y - 1M 0220y 🟢-🟢🟢🟢-🟢 Very Flat (5,492 m)Very Flat (5,492 m)
1M 0220y - 1M 0330y 🟠-🟠🟠🟠-🟡 Moderately Tight (668 m)Moderately Tight (521 m) to Moderate (858 m)
1M 0330y - 1M 0440y 🟠-🟠🟠🟠-🟡 Moderately Tight (598 m)Tight (352 m) to Moderate (1,047 m)
1M 0440y - 1M 0550y 🟠-🟠🟠🟠-🟡 Moderately Tight (641 m)Tight (441 m) to Moderate (836 m)
1M 0550y - 1M 0660y 🟣-🟣🟣🟣-🟣 Moderate (1,278 m)Moderate (1,278 m)
1M 0660y - 1M 0770y ⚪-⚪⚪⚪-⚪ StraightStraight
1M 0770y - 1M 0880y ⭕-🟠🟠🟠-🟠 Tight (373 m)Extremely Tight (207 m) to Moderately Tight (697 m)
1M 0880y - 1M 0990y ⭕-🔴🔴🔴-🔴 Very Tight (259 m)Extremely Tight (199 m) to Very Tight (304 m)
1M 0990y - 1M 1100y ⭕-🔴🔴🔴-🔴 Very Tight (256 m)Extremely Tight (191 m) to Very Tight (296 m)
1M 1100y - 1M 1210y ⭕-🔴🔴🔴-🟠 Very Tight (283 m)Extremely Tight (193 m) to Tight (389 m)
1M 1210y - 1M 1320y 🟠-🟡🟡🟡-🟡 Moderate (756 m)Moderately Tight (505 m) to Moderate (947 m)
1M 1320y - 1M 1430y 🟠-🟣🟣🟣-🟢 Moderate (1,681 m)Moderately Tight (665 m) to Very Flat (5,785 m)
1M 1430y - 1M 1540y ⭕-🟠🟠🟠-🟡 Moderately Tight (683 m)Extremely Tight (187 m) to Moderate (1,219 m)
1M 1540y - 1M 1650y 🟠-🟣🟣🟣-⚪ Moderate (1,382 m)Moderately Tight (722 m) to Straight
1M 1650y - 2M 0000y 🟠-🟠🟠🟠-🟡 Moderately Tight (689 m)Tight (498 m) to Moderate (881 m)
2M 0000y - 2M 0110y 🔴-🔴🔴🔴-🔴 Very Tight (258 m)Very Tight (237 m to 278 m)
2M 0110y - 2M 0220y ⚪-⚪⚪⚪-⚪ StraightStraight
2M 0220y - 2M 0330y 🟠-🟠🟠🟠-🟠 Moderately Tight (674 m)Moderately Tight (674 m)
2M 0330y - 2M 0440y 🟠-🟠🟠🟠-🟠 Moderately Tight (645 m)Moderately Tight (645 m)
2M 0440y - 2M 0550y ⭕-🟠🟠🟠-🟠 Tight (390 m)Extremely Tight (174 m) to Moderately Tight (612 m)
2M 0550y - 2M 0660y 🟠-🟠🟠🟠-🟠 Moderately Tight (659 m)Moderately Tight (659 m)
2M 0660y - 2M 0770y 🟠-🟡🟡🟡-🟣 Moderate (909 m)Moderately Tight (594 m) to Moderate (1,620 m)
2M 0770y - 2M 0880y ⚪-⚪⚪⚪-⚪ StraightStraight
2M 0880y - 2M 0990y ⚪-⚪⚪⚪-⚪ StraightStraight
2M 0990y - 2M 1100y 🟡-🟡🟡🟡-🟡 Moderate (1,229 m)Moderate (1,229 m)
2M 1100y - 2M 1210y 🔴-🟠🟠🟠-🟠 Tight (357 m)Very Tight (271 m) to Tight (418 m)
2M 1210y - 2M 1320y 🔴-🟠🟠🟠-🟠 Tight (360 m)Very Tight (349 m) to Tight (371 m)
2M 1320y - 2M 1430y 🔴-🟠🟠🟠-🟡 Moderately Tight (646 m)Very Tight (247 m) to Moderate (1,214 m)
2M 1430y - 2M 1540y ⚫-⚫⚫⚫-⚫ Extremely Flat (25,592 m)Extremely Flat (25,592 m)
2M 1540y - 2M 1650y 🟠-🟠🟠🟠-🟠 Moderately Tight (726 m)Moderately Tight (726 m)
2M 1650y - 3M 0000y ⭕-🔴🔴🔴-🔴 Very Tight (238 m)Extremely Tight (180 m) to Very Tight (328 m)
3M 0000y - 3M 0110y ⭕-🔴🔴🔴-🔴 Very Tight (233 m)Extremely Tight (160 m) to Very Tight (300 m)
3M 0110y - 3M 0220y 🔴-🟠🟠🟠-🟠 Tight (407 m)Very Tight (324 m) to Moderately Tight (501 m)
3M 0220y - 3M 0330y ⚪-⚪⚪⚪-⚪ StraightStraight
3M 0330y - 3M 0440y ⚪-⚪⚪⚪-⚪ StraightStraight
3M 0440y - 3M 0550y ⚪-⚪⚪⚪-⚪ StraightStraight
3M 0550y - 3M 0660y ⚪-⚪⚪⚪-⚪ StraightStraight
3M 0660y - 3M 0770y ⚪-⚪⚪⚪-⚪ StraightStraight
3M 0770y - 3M 0880y 🔴-🔴🔴🔴-🟠 Very Tight (348 m)Very Tight (247 m) to Tight (422 m)
3M 0880y - 3M 0990y 🔴-🟠🟠🟠-🟠 Tight (358 m)Very Tight (342 m) to Tight (374 m)
3M 0990y - 3M 1100y 🔴-🟠🟠🟠-🟠 Tight (440 m)Very Tight (273 m) to Moderately Tight (675 m)
3M 1100y - 3M 1210y ⚪-⚪⚪⚪-⚪ StraightStraight
3M 1210y - 3M 1320y ⚪-⚪⚪⚪-⚪ StraightStraight
3M 1320y - 3M 1430y ⚪-⚪⚪⚪-⚪ StraightStraight
3M 1430y - 3M 1540y 🟠-🟠🟠🟠-🟠 Moderately Tight (521 m)Moderately Tight (521 m)
3M 1540y - 3M 1650y ⭕-🔴🔴🔴-⚪ Very Tight (265 m)Extremely Tight (164 m) to Straight
3M 1650y - 4M 0000y ⭕-🟠🟠🟠-⚪ Tight (363 m)Extremely Tight (153 m) to Straight
4M 0000y - 4M 0110y ⚪-⚪⚪⚪-⚪ StraightStraight
4M 0110y - 4M 0220y ⚪-⚪⚪⚪-⚪ StraightStraight
4M 0220y - 4M 0330y ⚪-⚪⚪⚪-⚪ StraightStraight
4M 0330y - 4M 0440y ⚪-⚪⚪⚪-⚪ StraightStraight
4M 0440y - 4M 0550y ⚪-⚪⚪⚪-⚪ StraightStraight
4M 0550y - 4M 0660y ⚪-⚪⚪⚪-⚪ StraightStraight
4M 0660y - 4M 0770y ⚪-⚪⚪⚪-⚪ StraightStraight
4M 0770y - 4M 0880y ⚪-⚪⚪⚪-⚪ StraightStraight
4M 0880y - 4M 0990y ⚪-⚪⚪⚪-⚪ StraightStraight
4M 0990y - 4M 1100y ⚪-⚪⚪⚪-⚪ StraightStraight
4M 1100y - 4M 1210y ⚪-⚪⚪⚪-⚪ StraightStraight
4M 1210y - 4M 1320y ⚪-⚪⚪⚪-⚪ StraightStraight
4M 1320y - 4M 1430y ⚪-⚪⚪⚪-⚪ StraightStraight
4M 1430y - 4M 1540y ⚪-⚪⚪⚪-⚪ StraightStraight
4M 1540y - 4M 1650y ⚪-⚪⚪⚪-⚪ StraightStraight
4M 1650y - 5M 0000y ⚪-⚪⚪⚪-⚪ StraightStraight
5M 0000y - 5M 0110y ⚪-⚪⚪⚪-⚪ StraightStraight
5M 0110y - 5M 0220y ⚪-⚪⚪⚪-⚪ StraightStraight
5M 0220y - 5M 0330y ⚪-⚪⚪⚪-⚪ StraightStraight
5M 0330y - 5M 0440y 🟢-🟢🟢🟢-🟢 Very Flat (7,069 m)Very Flat (7,069 m)
5M 0440y - 5M 0550y ⚫-⚫⚫⚫-⚫ Extremely Flat (26,382 m)Extremely Flat (26,382 m)
5M 0550y - 5M 0617y 🟠-🟡🟡🟡-⚪ Moderate (886 m)Tight (487 m) to Straight