 There are also electronic signboards with information for motorists.Reconstruction required the laying of 680 tons of asphalt concrete, the installation of 100 km of pedestrian barrier and 2.4 km of sound barrier, and the construction of 24 interchanges, 30 bridges and viaducts, 6 above-ground pedestrian crossings and 16 underground pedestrian crossings.As of 2006, the road was used by 50,000 vehicles a day.