GRADE CROSSING PROTECTION by Metro Digital Resources Librarian • April 14, 2016 A railroad crossing flashing light signal or automatic gate actuated by the approach of a train at a grade crossing. (TRB) Share:Click to share on Facebook (Opens in new window)Click to share on Twitter (Opens in new window)Click to share on LinkedIn (Opens in new window)Click to share on Tumblr (Opens in new window)Click to share on Reddit (Opens in new window)Click to email this to a friend (Opens in new window)Click to print (Opens in new window)Like this:Like Loading... Related
