ABSTRACT
Tunnels are a necessary transportation infrastructure element but substantially contribute to CO2 eq. (Carbon) emissions and energy consumption. This paper is a gentle but fervent step towards minimization and better usage of resources that are the main “sustainable drivers” towards CO2 eq. (Carbon) emission. An analysis of the carbon footprint was performed for drill and blast tunneling near the Mratinje Dam in Montenegro. The life-cycle assessment (LCA) technique is employed to assess the environmental impacts associated with CO2 emissions directly related to the materials production and tunnel construction activities. Two different alternatives were evaluated to identify where efforts should be focused to reduce the carbon footprint of the tunnel construction process. Different materials and approaches are examined in maximizing sustainable opportunities. These examinations may help practitioners think differently and create new habits.
