Uploaded April 2017 | Updated September 2026, 3 weeks ago

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Crossrail is now focused on the complex task of fitting out the new tunnels and stations with the necessary infrastructure and railway systems to enable TfL-run services to commence through central London and Docklands in December 2018. This includes the installation of track, tunnel ventilation, high voltage power, traction power, signalling, communications and overhead line equipment.

Floating track slab (heavy) will be used in the Farringdon area due to the close proximity of the Barbican. It sits on heavy-duty springs. A total of 1.34 km of floating track slab (heavy) will be installed on Crossrail.

Due to the extra depth added by the spring base of the floating track, a shallower sleeper is needed. To ensure that the shallower sleeper remains durable and effectively minimises noise and vibration, an incredibly dense concrete called Magnadense is used. Magnadense is over twice as dense as normal concrete due to its natural iron ore content.

For more information visit:
crossrail.co.uk

Video released in 2017