page_title: South West Trains
section_title: Main lines
hierarchical_section_title: South West Trains / Services / Main lines
caption_attribution_description: English: South West Trains Class 455 electric multiple unit number 455732 on a stopping service to Woking via Surbiton at Wimbledon Station on 24 October 2005.
context_page_description: South West Trains was an English train operating company owned by Stagecoach, which operated the South Western franchise between 1996 and 2017.
  It operated the majority of commuter services from its Central London terminus at London Waterloo to South West London and was the key operator for outer suburban and regional services in the counties of Surrey, Hampshire and Dorset. It also provided regional services in Devon, Somerset, Berkshire, Wiltshire and on the Isle of Wight through its Island Line subsidiary.
  The area of operation was the former South Western division of Network SouthEast, and was also roughly that of the pre-1923 London & South Western Railway. As part of the privatisation of British Rail, SWT was taken over by Stagecoach. In 2004, the franchise was retained by Stagecoach when re-tendered. In 2007, the franchise was merged with the Island Line franchise to form a newly extended South Western franchise, which was won by Stagecoach. When next tendered, the franchise was awarded to South Western Railway which took over the franchise on 20 August 2017.
context_section_description: The seven main lines operated by SWT were:
  The South Western Main Line (SWML) to Southampton Central, Bournemouth and Weymouth. 2 trains an hour through to Weymouth (1 fast and 1 semi-fast) and 1 train an hour to Poole (stopping) Mondays-Saturdays, with Sunday Bournemouth services extended to Poole.
  The Portsmouth Direct Line via Guildford and Haslemere: leaves the main line at Woking. 4 trains per hour to Guildford, then 1 semi-fast service and 1 stopping service to Haslemere. The semi-fast service continued as a stopping service to Portsmouth. The fast services ran approximately half-hourly Mondays-Saturdays, 2 trains per hour (1 fast, 1 stopping from Guildford) on Sundays.
  The West of England Main Line to Salisbury, Yeovil Junction and Exeter St Davids: leaves the main line at Basingstoke.
  Wessex Main Line (part): Salisbury to Bristol Temple Meads. This service originated from London Waterloo and divides at Salisbury.
  Heart of Wessex Line (part): Yeovil Junction to Yeovil Pen Mill / Frome. This service originates from London Waterloo and divides at Yeovil Junction.
  London Waterloo to Portsmouth Harbour via Basingstoke and Eastleigh. Hourly service off-peak Mondays-Saturdays, merges with the Poole train on Sundays.
  London Waterloo to Reading via Staines-upon-Thames, Ascot and Wokingham.
caption: A Class 455 suburban unit at Wimbledon. These were used on inner suburban services.
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