British tunnellers are sought for underground construction in other countries. Their expertise is linked here to roughly a century of continued work on tunnels and underground railway lines beneath London. Repeated projects keep that specialist experience in use. Crossrail and an anticipated continuation into Crossrail 2 illustrate the argument for sustained engineering work.
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How continuous tunnelling work preserves national expertise
Britain's international tunnelling reputation is linked to an uninterrupted pipeline of difficult underground railway projects.