advice alert announcement appropriate-behavior appropriate-behaviour be-careful beware black care careful caution communicating communication concern crossing danger dangerous double-lines information informing island lookout observant pedestrians reflective refuge risk risks risky road road-sign safety security share sharing sign signs small-traffic-island traffic traffic-flow traffic-island walk walkers walking warning warning-sign watch watch-out yellow ahead around the bend Australia bend building buildings cars CBD city commute commuting complex curve direction freeway height high 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 speed traffic flow traffic lanes travel vehicles asphalt bollards changes changing circular cloud-formation clouds concrete cones construction curb curbing curbs delineators edging fill footpath infrastructure public-space red road-junction road-surface roads roadside roundabout sand slow-down slower speed-reduction street street-lighting surface surfaces surfacing T-junction temporary thoroughfare traffic-cones traffic-control trees uneven-surfaces blue directive message signage street-sign white witches-hats wording words stop mobile-lighting aged aging elderly old seniors slow symbol