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We’re modernising the railway network with a record level of investment to improve passenger journeys across Sussex.

New platform at Gatwick station
New platform at Gatwick station

The railway in Sussex is among the busiest and most congested in the country. The infrastructure on the line is also some of the oldest and most intensively used.

Between 2019-2024 we’re investing £750m as part of our Sussex Railway Upgrades to modernise ageing track, signalling, stations, structures and earthworks to give passengers more reliable journeys.

The signalling and track at key junctions will be replaced on the lines into London Victoria as part of the four-year Victoria Resignalling programme . We’re continuing to use extended closures to deliver work more quickly and minimise disruption to passengers. We invested £22m over a 9-day closure of the Arun Valley in summer 2021, as part of the Arun Valley Line Improvement Project. In February 2022, we’ll invest at least £11m over a 9-day closure to complete essential work between Three Bridges and Brighton.

Gatwick Airport station is being rebuilt with double the space for passengers. The investment will improve accessibility for all passengers,  support a more reliable train service and provide a gateway station that befits the country’s second busiest airport.

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£238m on digital signalling

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£169m on tracks and junctions

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£112m on replacing or refurbishing our structures

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£94m on buildings

Electrification and power supply icon

£69m on electrification and power supply improvements

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£48m on earth works

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£20m on drainage improvements

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Sign-up with your email address to receive updates on the Sussex region upgrade and information on projects taking place across the Southern region.

Our privacy notice applies to the personal information that Network Rail collects about you, or that you provide to us. It explains how and why we use your personal information, who we disclose it to and how we protect your privacy.

Contact us

For more information or to get in touch with us, please contact us by visiting our contact us page or by calling our 24-hour national helpline on 03457 11 41 41.

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