Question to the Department for Transport:

To ask the Secretary of State for Transport, what proportion of (a) rail journeys and (b) passenger miles were undertaken in (i) electric powered and (ii) diesel powered trains in the last 12 months for which figures are available; and what estimate he has made of those proportions in (A) one and (B) five years' time.

Information on the number of journeys or passenger miles by power source of the vehicle is not available.

The Office of Rail and Road (ORR) publishes data on the electrified rail route operated by Network Rail in Great Britain. This includes routes open to passengers and freight.

The length of Network Rail operated electrified route in Great Britain (so excluding the High Speed 1 line, for example) was 3,583 miles in 2017-18. This represents 36% of the total Network Rail mainline railway route.

This data is available at the following link:

https://dataportal.orr.gov.uk/displayreport/report/html/c35e0c28-324f-4168-81b9-be197963f251