Question to the Department for Transport:

To ask His Majesty's Government what percentage of trains on Network Rail are (1) cancelled, and (2) arrive more than five minutes later than timetabled, and what proportion of these cancellations and delays are caused by (a) signal failure, (b) lack of crew availability, and (c) other reasons.

(1) The Office of Rail and Road (ORR) reported that in the 12 months up to December 2024 the cancellation measure was 4.0%.

(2) The ORR publish train punctuality on a quarterly basis. They report trains arriving within 59 seconds, within 3 minutes or within 15 minutes of their scheduled arrival time. These are reported in Table 1.

Table 1. Train punctuality in the year ending December 2024, Great Britain

Source: ORR Table 3133: Delay minutes by operator and cause

The proportion of cancellations by the available causes is report in Table 2.

Table 2. Train Cancellations by cause and responsibility in the year ending December 2024, Great Britain

Source: DfT analysis of ORR Table 3123: Trains planned and cancellations by operator and cause

Information on the cause of delays is published by Rail Period by the ORR. This information is reported in delay minutes. The latest data (covering 3 March 2024 – 2 March 2025) on the proportion of delays minutes attributed by the available causes is reported in Table 3.

Table 3. Share of delay minutes by cause in the year ending 2 March 2025, Great Britain