[simne]

> A helicopter can't go from flying to transport you in a highway

Yes and no. In some EU countries, helicopters accepted to land near highway, and pick up (or disembark) passengers just like ordinary taxi. Also there very typical case, helicopter landed near Gas station to refuel.

Generally, strict restrictions exists on flights over large cities, but over rural area and over big water, regulations easier. Even so, if in large city exists big river, aviation could flighting over it with very easy restrictions.