The concept has been around for a while in many countries: * https://en.wikipedia.org/wiki/Road_runway https://en.wikipedia.org/wiki/Road_runway About two doz

The concept has been around for a while in many countries: * https://en.wikipedia.org/wiki/Road_runway https://en.wikipedia.org/wiki/Road_runway About two dozen were made in Sweden: * https://en.wikipedia.org/wiki/Bas_60#List_of_Bas_60_road_runways https://en.wikipedia.org/wiki/Bas_60#List_of_Bas_60_road_run... * https://en.wikipedia.org/wiki/Bas_90#Kortbanor_—_Short_runways https://en.wikipedia.org/wiki/Bas_90#Kortbanor_—_Short_runwa...