Of distance: Not great. Of a journey, flight, etc., Extending over a short distance. †Hence of a passenger, a train: Travelling a short distance.

(a) n. the action of travelling by bus; bus travel; (b) adj. (usually in form bus-riding) that travels on a bus.

Of a passenger of an aeroplane or other form of public transport: admitted on board in advance of the main body of passengers.