It increases the safety of road tunnels in case of fire, it dramatically reduces energy consumption for lighting and has a considerably longer life expectancy compared to other materials used for road surfacing. Moreover, in a circular economy perspective, it is a locally-sourced material that, once it reaches its end of life, can be 100% recycled. There are many reasons to prefer concrete as a material for road tunnel surfacing over bitumen. This is already happening in many countries, but not in Italy. And if more evidence were needed, life cost analysis (LCA) is available, showing that the more costly asphalt paving saves considerable more money compared to bitumen in the long run. “The use of concrete can guarantee 50-year durability in road tunnel paving. Such len...