title: For three quarters of century, safety experts work to keep trains, vehicles from colliding.
authors.forename: P
authors.initials: P
authors.lastname: Gunby
mesh_terms: D000063:Accidents, Traffic / Q000401:mortality / Q000517:prevention & control*; D006801:Humans; D011890:Railroads / Q000706:statistics & numerical data*; D014481:United States / Q000453:epidemiology; D014947:Wounds and Injuries / Q000401:mortality