An
articulated bus (either a
motor bus or
trolleybus) is an
articulated vehicle used in
public transportation. It is usually a
single-deck design, and comprises two rigid sections linked by a
pivoting joint (articulation) enclosed by protective folding bellows on the in- and outside of the vehicle (usually of gray or black colour) and a cover plate on the inside of the vehicle. This arrangement allows a longer legal overall length than single-decker
rigid-bodied buses, and hence a higher passenger capacity, while still allowing the bus to maneuver adequately on the
roads of its service route.