advice alert announcement appropriate-behavior appropriate-behaviour be-careful beware black care careful cars caution cautious communicating communication concern conditions danger dangerous directions informing Look looking lookout observant red risk risks road-conditions safety sign signs slippage slippery slow slow-down speed speed-reduction traffic vehicles warning warning-sign watch watch-out wet white yellow aged aging crossing elderly information old pedestrians risky road-sign security seniors signage street-sign symbol traffic-flow walk walkers walking font parallel-signage rectangle reflective speed-hump steel-post traffic-sign triangle word adults background boards carer couple covered decking flooring four-wheeled-walker gray grey lake lakeside man observing outdoors outside over-water pier planking planks platform posts reflecting reflections rollators rustic seat-walkers senior-citizens shelter sheltered surface surfaced surfaces surfacing texture textured textures timber timber-deck viewing-platform views wallpaper woman women wood wooden road share sharing stop animal bright bulbous-eyes Camouflage camouflaged casque chamaeleo-calyptratus closeup cold-blooded color-changes coloration colors colour-changes colours cone-headed-chameleon ear exotic eye fauna gentle green head helmet herpetology independent-swivelling insectivore insectivorous legs lizard middle-eastern mouth nose patchy reptile reptilian Saudi-Arabia scales skin spiky spines swivel veiled-chameleon Yemen road-risks rural tractor tractors double-lines island refuge small-traffic-island traffic-island