The South Western Main Line is the railway line from London Waterloo to Weymouth.
The main towns served by the route, starting from London, are:
Many sections of the line are relatively high-speed, with large stretches cleared for 100mph. The line was electrified to Bournemouth in 1967, using the 750V DC third-rail system. Electrification as far as Weymouth was completed in 1988, to coincide with the introduction of the new Class 442 'Wessex Electric' trains.
The majority of passenger services are currently operated by South West Trains. Virgin Trains also operate services between Basingstoke and Poole.
