Optimization and Design of a Railway Wheel Profile Based on Interval Uncertainty to Reduce Circular Wear

Table 2

Curve parameters analysis of a heavy-haul railway.

Track curvature	Radius (m)	Superelevation (mm)	Length of tangent (m)	Length of spiral (m)	Length of curve (m)	Number	Right and left curves	Percentage
1	400	85	300	120	145	1	Left	2.04
2	400	110	300	90	162	2	Left	4.08
3	500	90	300	110	219	8	Left	16.33
4	600	75	300	140	223	9	Left	18.37
5	800	55	300	130	250	1	Left	2.04
6	1000	45	300	100	211	2	Left	4.08
7	400	85	300	120	145	1	Right	2.04
8	400	110	300	90	162	1	Right	2.04
9	500	90	300	110	219	15	Right	30.62
10	600	75	300	140	223	3	Right	6.12
11	800	55	300	130	250	4	Right	8.16
12	1000	45	300	100	211	2	Right	4.08