Infrastructure wrong side failures

This measure comprises the number of higher risk (hazard index of 50 or above) infrastructure failures.

The table below shows the number of infrastructure high hazard incidents for 2017/18 compared to previous years.

These incidents are reviewed within the business and information for action shared across the routes including lessons learnt and how we can improve infrastructure reliability and safety of the assets.


Infrastructure incidents with a hazard score of 50 or more.

Infrastructure wrongside failures2009/102010/112011/122012/132013/142014/152015/162016/172017/18


The number of annual hazard incidents with a hazard score of 50 or more is averaging around 160 for the past four years. Signalling failures accounted for the greatest number with 76 failures. For structure assets there were 14 failures (19 in the previous year), track had 22 failures (compared with 26 in the previous year), electrical power had 42 failures (41 in the previous year) and buildings with 10 failures (compared with 5 in the previous year).