advice alert announcement appropriate-behavior appropriate-behaviour be-careful beware black care careful cars caution communicating communication concern crossing danger dangerous directions informing listen Look looking lookout observant rails railway railway-crossing red risk risks road safety sign signs trains warning warning-sign watch watch-out white cutout engine isolated loco locomotive machine pull railroad railways railworks train abstact colors pistons steam steel transport wheels appearance barrier carriage-end carriages coaches confined connected connection display displayed door end equipment grille handles heritage historical history mat metal mobility open passengers platform power railway-yard restoration restoration-yard restore restored transportation travel wood wooden brench line cow catcher depot dolly fender rail wheel antique old rusty vagon vintage