access-denied advice alert appropriate-behavior appropriate-behaviour authorised-approval authorized-approval behave behavior behaviour communicate communication denied direction entry-denied entry-prohibited exception keep-out limitations limited no-access no-entry not-allowed not-permitted permission-denied prohibited prohibition restricted restriction restrictions sign staff staff-approval staff-approved unauthorised unauthorized warning no-admission no-admittance red. restricted white announcement be-careful beware black care careful caution communicating concern crossing danger dangerous information informing lookout observant pedestrians risk risks risky road road-sign safety signs speed-reduction stop street-sign traffic traffic-flow walk walkers walking warning-sign watch watch-out yellow cars law legal no-standing park red refusal road-safety road-side sky unacceptable vehicles verge abstract backdrop background cheese cheese-grater cheesegrater circle circles circular close close-up closeup design distorted distortion distortions free graphic graphical grater hazard hazardous hole holes image message metal metallic pattern photo photograph picture reflection reflections resource round somadjinn stock symbol texture UP arrow blue directions disapproval disapproved prohibitions protect protection roadside rules sun-rays sunlight sunlit symbols access-limited advising authorised-entry-only authorized-entry-only confined-space lettering limited-access limited-permission limited-space signage avoid damage demolition destruction fence fencing mesh unwanted warning sign weathered wire-mesh aware awareness colors colours considerate consideration Dirt dirty garbage green listen rubbish waste waste-disposal animals creatures fatal feed feeding food inform protecting public-park text wildlife 3-D area attention banned cigarettes directive distinctive environment eye-catching glassy health health-risk location no-smoking plastic pollution raised style surface surfaces surfacing tactile textured textures thick thin unhealthy wording words