Its estimated that only 1/3 of the population lives close to an all seasons road in Africa. Drones will play a big part in the supply chain in Africa’s future. Fosters has already developed a drone port concept that they hope will become as ubiquitous as gas stations in the developing world

http://www.dezeen.com/2015/09/16/foster-partners-droneport-drones-medical-supplies-rwanda/