A German company has already conducted a one-off unmanned flight in Dubai.

Uber believes it could have a flying taxi service in four years.

Passengers would use the app to arrange to be collected at pick up points on top of a tall office building , a multi-storey car park or a shopping centre.

Electric planes, resembling a helicopter, would travel between 240 – 320 kmph and could be operated from the ground or by a pilot.

It’s hoped they could carry two passengers for about 30km.

Uber are hopeful they could roll out flying taxis in Los Angeles, Dallas and a third unnamed location as early as 2023, with test flights scheduled for 2020.