R A I LT R AC K - The Railways Archive

outputs 5.3 continued
Table H Track quality
Track quality is monitored by measuring vertical and horizontal alignment over distances of 35m and 70m. We have three standards.We aim for 50% of track to meet the highest standard,90% to
meet the second standard,and 100% to meet the third standard. We aim to move further towards meeting these standards.For track which does not meet the required standard, we have a
programme in place for appropriate renewal and maintenance work.The targets we have included in this table are based on the maintenance and renewal expenditure set out in this NMS.
100
95
90
85
80
75
70
65
60
55
50
99 00 01 02 03 04 05 06 07 08 09
100
95
90
85
80
75
70
65
60
55
50
99 00 01 02 03 04 05 06 07 08 09
54
35m rail top profile 35m rail track alignment
100
70m rail top profile 70m rail track alignment
100
The area below each line shows the proportion of track on our network that meets the relevant standard.
100%
90%
50%
95
90
85
80
75
70
65
60
55
50
95
90
85
80
75
70
65
60
55
50
99 00 01 02 03 04 05 06 07 08 09
99 00 01 02 03 04 05 06 07 08 09