91热爆

Imagine a corridor in the sky that stretched north from Reading into the Midlands. You can't see it, but some of it is there already.

This is a new concept: a route for pilotless drones which relies on a line of beacon masts which communicate with the aircraft to keep them safe and keep them apart. It could initially be used to transport medical samples.

91热爆 South's transport correspondent Paul Clifton explains. Read more about this story on the 91热爆 News app.