The Wessex Main Line is the railway line from Bristol Temple Meads to Southampton Central. Diverging from this route is the Heart of Wessex Line from Westbury to Weymouth. The Wessex Main Line intersects the Reading to Taunton Line at and the West of England Main Line at . Places served The places served are listed below. Bristol Temple Meads Keynsham Oldfield Park Bath Spa Great Western Main Line diverges to Chippenham, Swindon and London Paddington Freshford Avoncliff Bradford-on-Avon Trowbridge Westbury Heart of Wessex Line diverges to Weymouth Dilton Marsh Warminster Salisbury Dean Mottisfont & Dunbridge Romsey Eastleigh to Romsey Line diverges to Chandler's Ford and Eastleigh Southampton Passenger services are currently operated by Great Western Railway Portsmouth - Cardiff services, supplemented by South Western Railway between Salisbury and Southampton, and by Great Western high-speed express services between Bristol and Bath. Some services start at Swindon. Many services continue beyond Southampton along the West Coastway line to Portsmouth Harbour and Brighton, and beyond Bristol to Severn Tunnel Junction, Newport and Cardiff Central along the South Wales Main Line. Chippenham branch There is a link from to , with an intermediate stop at . Despite showing strong passenger growth in the previous few years, the new franchise reduced services in December 2006 to two each way per day, at times barely convenient for commuters. The frequency was increased from December 2013 and services were extended south to and north to , providing a regular timetable branded as TransWilts. History Southampton to Salisbury The South West Main Line of the London and Southampton Railway, which changed its name to the London and South Western Railway in 1839, had reached Southampton in 1840. A branch to Salisbury (Milford) from a junction on the main line at Eastleigh (then called Bishopstoke) was opened in 1847. The branch passes through Romsey and the Dean valley; today part of its route forms the Eastleigh-Romsey line. A more direct route between Southampton and Romsey was adopted in 1865 on completion of the Sprat and Winkle Line (at first by the Andover and Redbridge Railway, but taken over by the LSWR before completion). This forms the current route of the Wessex Main Line: departing westbound from Southampton Central via Millbrook and Redbridge before branching north to Romsey. North of Salisbury The line through Wiltshire and Somerset was completed in stages, after the Wilts, Somerset and Weymouth Railway (WS&WR)