beware blown-over branches broken broken-branches broken-fence cut damage damaged danger dangerous exposed fallen fence foliage footpath large large-tree leaves lopped Roots safety storm storm-damage tree warning warning-tape cutout isolated lights railroads semaphore traffic traffic light train trains blue marshy nature placard reeds sign walk water alert appropriate behavior appropriate behaviour black care concern denied directions law legalities not allowed not permitted permission denied prohibited prohibition protect protection red rules signs warning sign white ba1969 caution gap Look mind post step watch yellow advice announcement appropriate-behavior appropriate-behaviour be-careful communicating communication informing looking lookout no-assistance no-lifeguard risk risks risky signage swim swimming warning-sign avoid bright vehicle