Network Rail engineers work on the track at North entrance to Clayton tunnel on the Brighton Main Line. The 1 mile 506 yard long tunnel is the longest tunnel on the line and was completed in 1841 The improvement works on the Brighton Main Line are a key part of a £300 million government-funded programme to tackle delay hotspots and boost the reliability of the railway in the south east, including the expanded Thameslink network. The Brighton Main Line is a key rail route, connecting Gatwick Airport and the south coast with London, and is used by 300,000 people each day. 20 February 2019

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Keywords: brighton, clothing, east, engineering, engineers, high, line, main, maintenance, network, rail, railway, railways, south, southern, thameslink, visability, works