Seq. No.

Variable

1

Spalling and chipping

2

Top surface scratch

3

Squat damage

4

Corrugation wear

5

Flow of rail head or working edge

6

Rail joint malocclusion on the top or inner side

7

Rail joint gap

8

Rail vertical wear

9

Rail side wear

10

Rail head wear

11

Scaling

12

Rail head horizontal crack

13

Rail head vertical crack

14

Rail head transverse damage

15

Rail-web transition horizontal crack

16

Rail web horizontal crack

17

Rail web oblique crack

18

Rail web vertical split

19

Wire guide hole crack

20

Screw hole transverse crack

21

Screw hole longitudinal crack

22

Rail foot transverse crack

23

Rail foot longitudinal crack

24

Abnormal light band