Vienna, the capital city of Austria is also known worldwide as The City of Music and this musical metropolis is fine tuning the way that it constructs underground. In order to expand its metro system it has turned to the use of hydraulic props to hold back the pressure from the earth during construction of…
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Upgrades to transport infrastructure create temporary but crippling disruptions to the service. Expanding transport capacity on metro lines is an essential element of urban development. However, carrying out major upgrades to existing lines has meant temporarily denying its service to the existing passengers. Until now. In the charming city of Toulouse in southern France, a…
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