New developments in tunnelling technologies offer contractors greater efficiencies when constructing new bores. Tunnel boring machines (TBMs) are widely being used in major projects such as the Brenner Base Tunnel in the Austrian Alps. Full face TBMs are highly sophisticated machines featuring a rotating drilling head, which removes the material, and, depending on the type of construction, secures the excavated tunnel with shotcrete, rock bolts and wire mesh or prefabricated segments of reinforced concrete.
Siemens has agreed to supply its satellite-based prioritisation system Sitraffic Stream to the Icelandic capital, Reykjavik
Reykjavik and the Icelandic Road and Coastal administration (Vegagerd rikisins) are sharing the system that ensures traffic lights automatically turn green for emergency and urban public transport vehicles at road intersections. The system has been installed at six intersections in the centre of the capital. Over the coming months, around 50 fire trucks and ambulances will be fitted
