advice alert announcement appropriate-behavior appropriate-behaviour be-careful beware care careful caution communicating communication cycling cyclists disability disabled informing lookout observant path pathways pedestrians risk risks safety share sharing sign signs track walk walkers walking warning watch watch-out access angle angled angles architectural architecture brickwork curved curving decorative foliage greenery handrails light passage passageway pathway paved paving pedestrian practical protective safe shade shadows shiny slant slanting slope sloping smooth stonework sunlight sunshine through underpass vegetation wall handrail appearance backdrop background concrete construction deliberate design designed disaplayed display embedded gray grey hard hardened impressed impressions intentional patterned patterns perspective perspectives planned ridges rough shapes Sizes solid strength strong surface surfaces texture textured textures variations variety wet walls accessible across barriers bridge bright cycle estuary inlet lighting metal ocean ocean-view railing rails shared solar-lighting solar-panels span steel trees water