advice aged aging alert announcement be-careful beware black care careful caution communicating communication concern crossing danger dangerous elderly information informing lookout observant old pedestrians risk risks risky road-sign safety security seniors sign signage signs slow speed-reduction street-sign symbol traffic traffic-flow walk walkers walking warning warning-sign watch watch-out yellow above aerial aerial-photography agriculture angles arial below bird's-eye-view buildings cambodia cattle country-side crops cultivated cultivation distance distant expanse farming flat flooding floodplain flying from-above grassland height high houses landscape looking-down moving panoramic-views plantations plots rural scenery scenic shadows speed sunlight sunshine travel travelling trees vegetation water watercourses waterways appropriate-behavior appropriate-behaviour red road share sharing stop behavior behaviour dangers fast freestyle freestyling fun jet-ski jet-skiing limitations limited manoeuvrability mobility movement outdoors outside pastime power-sport recreation restricted restrictions river riverside sport transport transportation water-sports wave-runners asphalt blue bollards changes changing cones delineators directive footpath message road-junction road-surface roads roadside slow-down slower street T-junction temporary thoroughfare traffic-cones uneven-surfaces white witches-hats wording words ahead around the bend Australia bend building cars CBD city commute commuting complex curve direction freeway highrise highway lamp-posts left-hand driving main road merging merging traffic motor cars motor vehicles office office complex office highrise perspectives road rules road signs skirting the city centre traffic flow traffic lanes vehicles circular cloud-formation clouds concrete construction curb curbing curbs edging fill infrastructure public-space roundabout sand street-lighting surface surfaces surfacing traffic-control action active activity adult anchorage anchored bay boat boats buoys couple culture dinghy enjoy man moored moorings motion motor boat motoring outdoor people popular power power sport quick rubber dinghy sailing skill spray summer tourists trail turn water sports woman mobile-lighting