Question to the Department for Transport:

To ask the Secretary of State for Transport, what proportion of delays to East Coast Main Line rail services in 2013-14 were due to (a) overhead wire failures, (b) signalling failures, (c) other infrastructure failures, (d) flooding or other weather events, (e) vehicles, persons, or animals on the line, (f) train failures, (g) unavailability of staff and (h) other causes.

The Department does not hold the information in the form requested. This would be a matter for Network Rail.