footbridge to the new station building as part of the new Crossrail station improvements, which include step-free access to all platforms, step-free access to Station Road and Station Approach/High Point Village. All lines at Hayes & Harlington are electrified. Airport Junction Airport junction adjoins the station the junction of the short Heathrow Airport branch. For this reason, the lines through the station are electrified with 25 kilovolt A.C. overhead power from London Paddington to the airport – the main line to has been electrified by early 2018 as part of a project to modernise the main line. The junction itself, west of the station, consists of two high-speed turnouts from the main lines, the 'down' (away from London) line curving away to the left towards the Airport and the 'up' (towards London) line passing over a concrete flyover to clear (flyover) the up and down main lines. The construction permits London-bound electric trains to join the main line at the same time as westbound expresses serve the down main line. Services Trains at Hayes & Harlington are operated by Great Western Railway and Elizabeth Line. Frequency The Monday-Saturday off-peak service is: 8tph to 2tph to 2tph to 2tph to Heathrow Terminal 4 2tph to Heathrow Terminal 5 The Sunday service is: 6tph to 2tph to of which 1 continues to 2tph to Heathrow Terminal 4 2tph to Heathrow Terminal 5 Oyster "pay as you go" as well as contactless can be used for journeys originating or ending at Hayes & Harlington. Service table Elizabeth line Hayes & Harlington is served by Elizabeth line trains between London Paddington, Heathrow Airport and . In the future, using new tunnels under Central London, trains will continue to Abbey Wood station in southeast London and eventually Shenfield in the east. Although beyond the core tunnel section, Hayes & Harlington will be provided with a frequent metro service across the capital to Docklands, Abbey Wood and , replacing the current Great Western Railway service. Elizabeth line upgrades Various alterations have been made by Network Rail to prepare the station for Crossrail: New station building Four new lifts to provide step-free access Platforms 1–4 extended New bay platform 5 constructed (replacing existing bay) New platform canopies to platform 4 and 5 Track work to widen the island platform 2 and 3 and to provide access to the new bay platform Locale Harlington is a green-buffered enlarged