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South Western Railway: Rolling Stock

Asked by Sarah DykeLiberal DemocratDepartment for TransportTabled Answered 27 November 2025UIN 93893

The question

To ask the Secretary of State for Transport, what discussions she has had with South Western Railway on the delivery of new stock.

Answered by Keir Mather

Department officials meet regularly with South Western Railway (SWR) to hold it accountable for performance, safety, and fleet. The rollout of the new Arterio trains is continuing with great progress being made. Since transferring to public ownership, the number of trains in service has quadrupled with 28 now in service.

In addition to the new Arterio fleet, SWR is currently in the process of refurbishing its Class 158 and 159 diesel fleet, which will benefit customers using the West of England line. Collectively, the enhancements will improve comfort, connectivity and productivity for customers travelling on these trains.

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