I think if they aren't practicing using highways as runways, then they aren't really runways. They might have been designed at some point.
The US using highways never made sense since unlikely to need them, and have a ton of civil airfields that could be used. Using highways makes a lot of sense for Sweden and Finland that are under threat and doesn't have civil aviation.
The US using highways never made sense since unlikely to need them, and have a ton of civil airfields that could be used. Using highways makes a lot of sense for Sweden and Finland that are under threat and doesn't have civil aviation.