during their journey, historically at Barnham Junction, today at Horsham. The section west of Portsmouth sees trains from typically three operators. Its stations are managed by South Western Railway, who operate regular services from Portsmouth either to Southampton or to London Waterloo (less directly than its Portsmouth Direct Line, instead via Fareham, Botley, Hedge End and Eastleigh). Great Western Railway operate diesel passenger trains from Portsmouth to and , with occasional services to the West Country or . Southern operate hourly services: between Brighton and Southampton Central; and between London Victoria and Southampton. The Southampton to London Victoria trains introduced at electrification created many direct routes, from Southampton, Swanwick, Fareham and Cosham to the West Sussex coast and particularly to Gatwick Airport. Historic service patterns Beyond the line and its main links to London, before late 2007 trains ran from Reading or Basingstoke to Portsmouth or Brighton; Basingstoke to Portsmouth being current. The Department for Transport withdrew the obligation of South West Trains to run Brighton services — being somewhat orbital around London — which left free train paths which were filled by extra Southern trains mainly bound to or from London. Prior to the 1980s electrification of the "(south) Hampshire lines", including the part of this line west of Farlington, they were operated as a separate entity terminating at Portsmouth – few trains traversed the Cosham to Farlington triangle which lies north of Portsmouth and Langstone Harbours, except a daily Brighton-to-Exeter through (direct) train. After dieselisation using 3H units in 1958, the general service pattern every hour was one semi-fast from Portsmouth to Southampton and Salisbury (some extended to Bristol), one stopping to Southampton Central and one train to Botley and Eastleigh (some extended to Reading and, until 1966, Romsey via Chandler's Ford). Trains used on the service: -Class 377 (Electric Multiple Unit) - First manufactured: May 2003 - Present -Class 313 (Electric Multiple Unit) - First manufactured: 1976 - 1977 History The lines now operated under the banner "West Coastway" have a complex history and were built in stages by five different companies between 1840 and 1889. The line from Brighton to Shoreham was a branch of the London and Brighton Railway which opened 12 May 1840, before the completion of the main line. The extensions of this line to Worthing (opened 24 November 1845), to Arundel & Littlehampton (opened 16 March 1846) and to Chichester (opened 8