London’s Crossrail is one of the largest engineering projects ever undertaken. Scheduled to open in 2018, it is a new 118-kilometre civil construction project including 21 kilometres of twin-bore tunnels running east-west under London, augmenting the existing underground system with 40 new or totally re-engineered stations.

The project will immediately increase capacity on the London rail network by 10 per cent and use new rolling stock of much greater capacity than existing underground carriages. Major interchanges are planned for Central London at Paddington and Tottenham Court Road. Due to achieve unprecedented success in keeping to the…