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Countries around the world are concerned with securing enough fuel and energy for their national economy. At present it is important supply of buildings with energy and their efficient consumption. The economical use of energy and fuel in the non-productive sphere consists of rationalizing energy consumption in the building and energy supply to the buildings. The most energy consumed is recording heating of buildings the reason is to cover thermal losses. The European Union is focusing on supporting the modernizat...

An important factor influencing the level of economic development of countries and regions is the transport infrastructure. The transport infrastructure in the Slovak Republic lags behind the needs. The motorway network as an important element in transport infrastructure is significantly undersized and unevenly distributed. The paper is focused on the tunnels, which are an important part of the mountainous country highways. Their construction is economically, technically challenging and time consuming and the aim ...