Australian roads were mentioned earlier: the Nullabor has substantial straight stretches which have been surveyed and marked for RFDS (Flying Doctor) operations, mostly King Airs. The local plods are trained in preparing the road (remove signs, stop traffic, etc) and this is what you see every few hundred kms:
The daunting thing about the trip isn't the distance in itself, but arriving on the bike at the beginning to hear the GPS pipe up: "in 1,200 kilometres make a left turn"
