page_title: British Rail Class 450
section_title: Operations
hierarchical_section_title: British Rail Class 450 / Operations
caption_attribution_description: English: South West Trains Class 450 No. 450112 at London Waterloo
context_page_description: The British Rail Class 450 third-rail DC EMU began service during 2003. They are a part of the Siemens Desiro modular train family. Used for outer suburban services, the Class 450 was built with standard and first class accommodation. The unit has a maximum speed of 100 mph.
  The Siemens "Desiro UK" family also includes units of Classes 185, 350, 360, 380 and 444. These trains are the most numerous trains in South Western Railway's fleet, and also the most numerous units in the Desiro UK family.
  In August 2017, the units transferred to South Western Railway, owned by FirstGroup and MTR Corporation.
context_section_description: The Class 450 Desiro trains operate on certain London commuter rail routes, as well as outer suburban and regional services from London Waterloo, and local services outside of the London area. They are used on all SWR lines except the West of England line and the Eastleigh to Romsey Line. These include:
  Waterloo to Alton
  Waterloo to Basingstoke (all stations from Woking)
  Waterloo to Guildford (occasionally)
  Waterloo to Reading (Most services operated by Class 458)
  Waterloo to Windsor and Eton Riverside (occasionally)
  Waterloo to Weybridge (Shared with Class 458 and Class 707)
  Waterloo to Poole (Shared with Class 444 and Class 442)
  Waterloo to Haslemere (Shared with Class 444)
  Waterloo to Portsmouth Harbour (shared with Class 444 and Class 442)
  Ascot to Aldershot
  Guildford to Farnham
  Portsmouth & Southsea/Portsmouth Harbour to Southampton Central (all stations)
  Brockenhurst to Lymington Pier
  Bournemouth to Weymouth. (Single service)
  Weymouth to Brockenhurst. (Single service)
  They can also be found on London commuter rail services usually operated by Class 455 units (to Woking, Guildford, Dorking, Chessington South, Hampton Court, Shepperton and the Kingston Loop Line), particularly in the peaks and on Sundays during periods of engineering work. These trains used to be seen in service between Wareham and Brockenhurst rail stations but now there are two trains an hour to London Waterloo from Weymouth, which are operated by SWR 444 units and an hourly slow train service from London Waterloo to Poole which is shared between Class 450s and Class 444s.
  Class 450 Desiro trains are used on the Portsmouth Direct Line for London Waterloo to Portsmouth Harbour services in place of Class 444 Desiro units on some services.  The decision to use Class 450 Desiros has been a cause for complaint from passengers specifically because of the 3+2 seating arrangement.
caption: South West Trains Class 450 No. 450112 at London Waterloo
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