ABSTRACT
The Model Specification for Tunnelling was produced by the British Tunnelling Society in conjunction with the Ground Board of the Institution of Civil Engineers in order to establish a common standard for tunnelling and first published in 1997. The latest major revision of the Specification for Tunnelling, Third edition was issued in 2010 and extensively used on infrastructure projects in the UK and abroad, in particular the mega project Crossrail. The forthcoming fourth edition of this reference standard reflects the further developing maturity of the industry and the increased focus of stakeholders on carbon footprint reduction.
