child mother path pedestrians road roadsign sign street walk warning advice alert appropriate-behavior appropriate-behaviour background black care caution close-up colors colours communication concern danger dangerous directions distinctive external greenery hazard hazardous hazardous-pathway message path-warning-sign safety shade shadows signage sunlight tree trees trip-warning tripping-up uneven vegetation walking-hazard warning-sign yellow bicycle blue cycle cycler drive hike kid ride signs strollers tourist walker warning.stroller bridleway England english eroded erosion exercise forest Great Britain green landscape nature panorama Soil summer Sussex track trail travel view wooden woodland directing direction emergency emergency exit escape exit exiting fire guide help icon indoor instruction leaving life logo man pictogram protection run running save symbol urgency wall announcement be-careful beware blocked blocked-path careful communicating detour go-around informing lookout observant observe security watch watch-out arrow door doors doorway jump parachute