The NeTTUN (New Technologies for Tunnelling and Underground Works) Project is run by a consortium of 21 Industrial, Research & Development laboratories and Small and Medium Enterprises organizations across 9 countries in Europe; the ultimate goal is to enable groundbreaking change in the construction, management and maintenance of tunnels. NeTTUN aims at developing a fully automated system, that installed on Tunnel Boring Machine (TBM) provides identification of large obstacles that can obstruct the digging (e.g. other tunnels, cavities, boulders, foundations, archaeological remains, etc) as well as soil changes (e.g. from gravel to fractured rock).