Here is a video of F/A-18 Hornet Taking Off and landing From a Public Highway
In the above video, you can see a Finnish Hornets take off from roads as part of the training.
Finnish Air Force F-18s is departing from a public road that was filmed during Ex. Warkaus 2011 at on Highway 5 in Joroinen Finland.
Such kind of training has been part of the standard training conducted mainly in Central, Eastern, and Northern Europe since the Cold War.
Furthermore, With the Dissolution of the Warsaw Pact, highway take-offs and landings have become less frequent.
However, the threat of Russian bombers violating the airspace of Baltic countries requiring QRA intervention is still alive.
The above video is from LIVEX 2015 Air Force Exercise was held on 5-9 October at Air Force bases across the country.