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Written Question
Rolling Stock: South West
Tuesday 23rd December 2025

Asked by: Jerome Mayhew (Conservative - Broadland and Fakenham)

Question to the Department for Transport:

To ask the Secretary of State for Transport, what steps she is taking to ensure that there are sufficient replacement trains in operation following the withdrawal of the Class 43 HST trains from services in the South West.

Answered by Keir Mather - Parliamentary Under-Secretary (Department for Transport)

The remaining High Speed Train (HST) fleet, including Class 43 power cars, were withdrawn at the end of the Summer 2025 timetable and have been replaced with existing fleet, including the recently introduced Class 175s, the first of which entered passenger services on Monday 15 December.

Written Question
Rolling Stock: South West
Tuesday 23rd December 2025

Asked by: Jerome Mayhew (Conservative - Broadland and Fakenham)

Question to the Department for Transport:

To ask the Secretary of State for Transport, what steps she is taking to ensure that the withdrawal of the Class 43 HST trains from services in the South West does not result in severe disruption and cancellations.

Answered by Keir Mather - Parliamentary Under-Secretary (Department for Transport)

The remaining High Speed Train (HST) fleet, including Class 43 power cars, were withdrawn at the end of the Summer 2025 timetable and have been replaced with existing fleet, including the recently introduced Class 175s, the first of which entered passenger services on Monday 15 December.

Written Question
Motor Vehicles: Carbon Emissions
Thursday 18th December 2025

Asked by: Jerome Mayhew (Conservative - Broadland and Fakenham)

Question to the Department for Transport:

To ask the Secretary of State for Transport, what proportion of the identified in the Government’s October 2023 cost-benefit analysis of the Zero Emission Vehicle Mandate represents costs to the public purse; and if she will publish a breakdown of those Government costs.

Answered by Keir Mather - Parliamentary Under-Secretary (Department for Transport)

The Zero Emission Vehicle (ZEV) Mandate is the largest single carbon saving measure across Government and fundamental to the UK’s commitment to reach net zero by 2050. The cost-benefit analysis for the ZEV Mandate and CO2 regulations estimated the net value to society of the regulations. This was estimated at a benefit of £39 billion (2022 prices) over the full appraisal period, between 2021 and 2071.

There are three main sources of Government costs:

  1. Taxation impacts, which are a transfer from vehicle owners to government, were also assessed (Vehicle Excise Duty, fuel duty and VAT), but these reflected policy at the time. At the time, fuel duty and VAT losses from reduced fuel consumption were estimated at £20 billion (2022 prices) over the period from 2024–2035. This does not reflect subsequent taxation decisions since publication.
  2. The administrative costs of the regulation were estimated at £24 million (2022 prices). Wider indirect effects on public expenditure such as any costs from changes in traffic volumes and the weight of vehicles, and savings to the NHS from improved air quality were not quantified.
  3. Some of the costs attributed to business (notably vehicle/infrastructure, and electricity network reinforcement capital costs) could fall to government, particularly where purchases or installations are subsidised, and through public-sector procurement (e.g., the Government fleet). The proportion of costs falling to government were not separately quantified and, for Government vehicles, should be considered alongside the operating cost savings from switching to electric vehicles. The proportion of expenditure that purchase grants cover implies that the vast majority of these costs will be borne by the private sector.

Written Question
Railways: Compensation
Monday 15th December 2025

Asked by: Jerome Mayhew (Conservative - Broadland and Fakenham)

Question to the Department for Transport:

To ask the Secretary of State for Transport, how many compensation claims were submitted for train operating companies for which her Department is the operator of last resort in (a) November 2025 and (b) each month since July 2024.

Answered by Keir Mather - Parliamentary Under-Secretary (Department for Transport)

The Office of Rail and Road (ORR) publish quarterly statistics on the volume of compensation claims submitted and closed by train operating companies. Table 4410 (https://dataportal.orr.gov.uk/statistics/passenger-experience/delay-compensation-claims/table-4410-delay-compensation-claims/) provides the number of delay compensation claims submitted from July 2024 to July 2025. The data for the next quarter of 2025 is due to be published in January.

Written Question
Cars: Carbon Emissions
Thursday 11th December 2025

Asked by: Jerome Mayhew (Conservative - Broadland and Fakenham)

Question to the Department for Transport:

To ask the Secretary of State for Transport, what proportion of new cars registered in (a) November 2025 and (b) each month since July 2024 were zero-emission vehicles.

Answered by Keir Mather - Parliamentary Under-Secretary (Department for Transport)

The information requested is given in the link below: https://www.gov.uk/government/statistics/developing-faster-indicators-of-transport-activity


Data for November 2025 was published on 10 December.

Written Question
Electric Vehicles: Sales
Thursday 11th December 2025

Asked by: Jerome Mayhew (Conservative - Broadland and Fakenham)

Question to the Department for Transport:

To ask the Secretary of State for Transport, how many used electric vehicles were sold in (a) November 2025 and (b) each month since July 2024.

Answered by Keir Mather - Parliamentary Under-Secretary (Department for Transport)

The Department for Transport does not hold this information.

Written Question
Great British Railways
Tuesday 9th December 2025

Asked by: Jerome Mayhew (Conservative - Broadland and Fakenham)

Question to the Department for Transport:

To ask the Secretary of State for Transport, what her planned timeline is for the establishment of Great British Railways following the passage of the Railways Bill; and if her Department will publish an implementation plan setting out milestones for the establishment of Great British Railways.

Answered by Keir Mather - Parliamentary Under-Secretary (Department for Transport)

We are aiming for Great British Railways to be established as soon as possible after the Railways Bill receives Royal Assent, which will likely be around 12 months after the Bill passes. We will be focusing on implementing it, rather than publishing plans about implementing it.

Written Question
Railways: Tickets
Tuesday 9th December 2025

Asked by: Jerome Mayhew (Conservative - Broadland and Fakenham)

Question to the Department for Transport:

To ask the Secretary of State for Transport, what proportion of rail journeys used fully digital tickets in (a) November 2025 and (b) each month since July 2024.

Answered by Keir Mather - Parliamentary Under-Secretary (Department for Transport)

The approximate proportion of tickets fulfilled as Digital Tickets from July 2024 to November 2025 are:

Jul-24

Aug-24

Sep-24

Oct-24

Nov-24

Dec-24

Jan-25

Feb-25

Mar-25

Apr-25

May-25

Jun-25

Jul-25

Aug-25

Sep-25

Oct-25

Nov-25

Digital (%)

82

81

84

84

84

84

86

86

85

85

85

85

85

84

86

85

87

Non Digital (%)

18

19

16

16

16

16

14

14

15

15

15

15

15

16

14

15

13

Written Question
Railways: Government Assistance
Tuesday 9th December 2025

Asked by: Jerome Mayhew (Conservative - Broadland and Fakenham)

Question to the Department for Transport:

To ask the Secretary of State for Transport, what estimate she has made of the level of net Government support to the rail sector per passenger journey in (a) November 2025 and (b) each month since July 2024.

Answered by Keir Mather - Parliamentary Under-Secretary (Department for Transport)

The Department’s support for the 14 contracted operators and Network Rail was £8.47 per passenger journey in 2024/25. It is currently estimated that this will steadily decrease to circa £7.40 in 2028/29, primarily driven by a declining rail passenger services subsidy as passenger ridership and revenue continue to recover post COVID-19 and efficiencies and as savings are made through public ownership.

Written Question
Aviation: Alternative Fuels
Tuesday 9th December 2025

Asked by: Jerome Mayhew (Conservative - Broadland and Fakenham)

Question to the Department for Transport:

To ask the Secretary of State for Transport, what assessment she has made of the impact of the Revenue Certainty Mechanism on the cost of Sustainable Aviation Fuel compared with conventional jet fuel.

Answered by Keir Mather - Parliamentary Under-Secretary (Department for Transport)

The Sustainable Aviation Fuel (SAF) Revenue Certainty Mechanism (RCM) aims to support the development of first-of-a-kind SAF plants and pave the way for lower cost UK SAF plants.

The Government published a Cost Benefit Analysis for the SAF RCM in May 2025.