alert alternative-way announcement arrow be-careful beware black blocked blocked-path care careful caution communicating communication danger detour directing direction discoloration go-around informing lookout message observant observe pedestrians safety security sign warning watch watch-out wording words yellow access accessible across barriers bridge bright concrete construction cycle cyclists estuary handrails inlet light lighting metal ocean ocean-view path pathway railing rails shared sharing solar-lighting solar-panels span steel strength strong sunlight sunshine surface surfaces trees vegetation water accessibility appropriate-behavior appropriate-behaviour beach beach-side bitumen coast costal cycling families movement moving people protective risks sand sandy sealed share surfacing texture textured textures track travel traveling travelling walk walkers walking advice concern crossing dangerous information red risk risky road road-sign signs speed-reduction stop street-sign traffic traffic-flow warning-sign