with the exception of one two-lane motorway, most of the islands in the territory have no roads of any sort. diego garcia has a short stretch of paved road between the port and airfield; otherwise transport is mostly by bicycle. diego garcia's military base is home to the territory's only airport. at 3000 metres long, it is capable of supporting heavy usaf bombers such as the b-52 and would have been able to support the space shuttle in the event of a mission abort. it also has a major seaport.