attention beware blue careful caution child conduct control course danger drive guide happen highway industry kids law limit Look pedestrian pedestrians people playground playing protection respect road school sidewalk sign slow street symbol teen traffic transportation walk warning way zone access angle angled angles architectural architecture brickwork curved curving decorative foliage greenery handrails light passage passageway path pathway paved paving practical protective safe safety shade shadows shiny slant slanting slope sloping smooth stonework sunlight sunshine through underpass vegetation wall handrail adelaide arched barrier bridge bright concrete footbridge lights overpass park patterns peaceful perspective perspectives posts public park railing rails recreation recreational area relaxing river river-crossing shadow steel walkway waterway walls appearances caged contained cover covered freeway mesh metal public ribbing roof roofing secure security shelter sheltered support tunnel tunnelled advice alert announcement appropriate-behavior appropriate-behaviour be-careful care communicating communication cycling cyclists informing lookout no-speeding observant pathways pedestrian-priority risk risks share sharing signs track walkers walking watch watch-out