city bus
				   		Motorized vehicle for city transportation of passengers who are standing or seated.
				
 
					
					
					
						route sign 
						Screen usually on the front, rear and right side of the vehicle, displaying the number of the bus’s route.
				  	
 
					
						air intake 
						Opening in the roof, fitted with a cover, for letting fresh air into the bus.
				  	
 
					
						two-leaf door 
						Wide door divided into two movable parts, which double back to each side to allow several people to pass through at once.