Vertical landing drops staight in from the sky, and comes to an immediate halt. These planes just need a strip of concrete wider & longer than the plane itself. Realistically you could comfortably put one down on a motorway service station carpark, and then lay a short portable runway along its off-ramp for takeoff.
> Realistically you could comfortably put one down on a motorway service station carpark
I'm sure the exceptionally canny operators of motorway service stations would find a way to make some extra money off them then. Come for a coffee, stay for a jet launch.