TRB’s Transit Cooperative Research Program (TCRP) Research Results Digest 85, Rail Passenger Safety: Equipment and Technologies provides an overview of a study mission performed October 13-28, 2006, that investigated European rail safety programs. Over their two weeks in Europe, study mission team members visited organizations and facilities in Berlin and Hennigsdorf, Germany; Reichshoffen and Paris, France; and London and Crowthorne, Berkshire, United Kingdom.