Definition
This is the number of incidents of irregular working that introduce significant risk to the railway (categorised as potentially significant and potentially severe based on an evaluation of their actual or potential consequence.
Results
| |
2007/8 |
2008/9 |
2009/10 |
2010/11 |
| Potentially significant |
674
|
347
|
231
|
179
|
| Potentially severe |
72
|
77
|
50
|
51
|
| Irregular working MAA |
57.38
|
32.61
|
21.69
|
17.69
|
Commentary
Irregular working covers any act by a person that has a direct potential for safety loss. Such an act may occur when a rule, process or procedure is not correctly followed.
This measure comprises the number of incidents of irregular working that introduce significant risk to the railway (categorised as potentially significant and potentially severe) based on an evaluation of their actual or potential consequence.
Whilst the number of potentially severe incidents showed 2 per cent deterioration, there has been an 18 per cent improvement in the overall number of events recorded, with a 23 per cent improvement in potentially significant incidents. Specific actions have been implemented to address irregular working incidents associated with signalling, equipment and materials, engineering work protection arrangements and the working of engineering trains.