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 appropriate behavior appropriate behaviour cigarettes environment health health risk no smoking no smoking sign not allowed not permitted penalties permission denied pollution unhealthy black care danger dangers red risk risks signs swimmers swimming water disability disabled disabled-parking ground ground-level limited-parking parking paved paving special-parking stonework surface surfaces symbol symbols communicating directing directional directive give way indication indicator informing road sign rules safety street sign traffic traffic flow access-limited advising authorised-entry-only authorized-entry-only caution concern confined-space dangerous information lettering limited-access limited-permission limited-space risky signage warning-sign animals awareness careful creatures directions fatal feed feeding food inform message protecting protection public-park text wildlife area health-risk no-smoking