Question to the Department for Transport:

To ask the Secretary of State for Transport, how many rail delays were caused by (a) track failure, (b) signalling failure, (c) other infrastructure failure, (d) staff shortages, (e) train failures and (f) other train operating company failures in each year since 2015.

The number of delay minutes affecting passenger operators since 2015 is as shown in the attached document. Delay minutes are the total number of minutes caused by a failure; this includes both the primary cause of delay and any knock on delays as a result of this failure. This data is not available broken down by the categories requested.