allow allowed ban banned not not allowed prohibit prohibited ride skate skateboard skateboarding laudspeakers loud loudspeaker noise radio silence dog dogs roadsign sign bicycle bicycles bike bikes post roadsigns signs warning animal bark circle cutout direction isolated mammal no dogs red trespass drive illegal motorbike no prohibition proscription vehicle blue crossing crosswalk decree man pedestrian pole signpost sky steel traffic walk walking white zebra zebracrossing lot p park parking posts signposts space sundtraffic biking child cycle bicylce forbid forbidden horse riding stop three tractor