This is a measure of the total higher risk (hazard index of 50 or above) failures of infrastructure.
This measure identifies failure areas where improvement to the infrastructure is required or perverse equipment behaviour manifests itself when new equipment is introduced.
| |
2007/8 |
2008/9 |
2009/10 |
2010/11 |
| Total |
60 |
50 |
67 |
88 |
This measure comprises the number of higher risk (hazard index of 50 or above) failures of infrastructure. The table shows the number of Infrastructure wrongside failures for 2010/11 compared to previous years.
From 2009/10, the definition was revised to include instances of animal incursion where only a large boned animal was struck by a train. In 2010/11, there has been a 31 per cent increase from the previous year, primarily attributable to an increase in track related failures and animal incursions of the railway boundary.