Definition
This is a measure of all Category A SPADs. This indicates the signals passed while displaying a stop aspect for intrusions into a non-permitted route, which can lead to collision when a stop aspect or indication was displayed correctly, in sufficient time for the train to be stopped at the signal.
Results
| |
2007/8 |
2008/9 |
2009/10 |
2010/11 |
| Category A SPADs |
354 |
293 |
274 |
299 |
Commentary
This measure reports all Category A SPADs, which are those instances where signals have been passed when a stop aspect, end of in-cab signalled movement authority, or indication (and any associated preceding cautionary indications) was displayed correctly in sufficient time for the train to be stopped safely at the signal or end of in-cab movement authority.
Performance is 8.7 per cent worse than in 2009/10, which saw the lowest ever recorded number of Category A SPADs. No single contributory factor accounts for this increase and we continue to work with rail industry colleagues to address SPAD risks.