Roman roads were not simply just paved with tar like our roads in present time. There was a long process of setting different stones down on the ground with many layers to support the road. It may have taken longer but the roads are still there today!
As the legions blazed a path through Europe, the Romans designed new highways to link captured cities with Rome and establish them as colonies. These routes ensured that the Roman military may out-pace and out-maneuver its enemies, however they additionally power-assisted within the everyday maintenance of the Empire.