alert appropriate-behavior appropriate-behaviour approval approved black bush-reserve care communication concern conservation conserve denied directions inform information informing natural nature not-allowed not-permitted observation observe park permission-denied permitted prohibited prohibition prohibitions protect protection public-park red restrictions rules sign signs warning warning-sign white barricade barricades communicate flash flashing light lights orange street street sign warn appropriate behavior appropriate behaviour communicating directing direction directional directive give way indication indicator road sign safety traffic traffic flow cross crossing junction man pedestrian pedestrians road roadsign walk zebra car highlands narrow passing place scotland signpost single track vehicle winter advice announcement be-careful beware careful caution danger dangerous double-lines island lookout observant reflective refuge risk risks risky road-sign security share sharing small-traffic-island traffic-flow traffic-island walkers walking watch watch-out yellow animal dog groningen guard guard-dog pet shape vector dead end street end hidden its all over no way out over road rules sackgasse street yield sign the end traffic sign way avalanche beach cliffs cornwall England english falls Great Britain grunge grungy rock sand stand