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The remarkable volume of tunnelling on a worldwide basis during…
17 September 2010 | By Prof. Dr.-Ing. Alfred Haack, Past President of ITA – International Tunnelling and Underground Space Association and former Executive Board Member of STUVA – Research
Association for Underground Transportation Facilities
The remarkable volume of tunnelling on a worldwide basis during the last two or three decades (see Figure 1) is not defined by the demands to improve the railway networks in many countries. Stimulation in this direction is especially given by the generally highly ranked socio-political requirement of improved mobility…