Railroad Safety (Communications System for Trains).: Hearings...on S. 238...May 19, June 14, 23, 24, July 6, 1949
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accident occurred amended appliances authority automatic automatic train stop bill block signals brakes Brotherhood cab signal caboose cars Cascade Locks casualties caused centralized traffic control Chairman Chicago collisions Commissioner committee communication systems defects derailments engine equipment Federal Communications Commission foreman frequencies give the Commission grade crossings hearing highway intended to promote Interstate Commerce Act Interstate Commerce Commission investigation JOHNSON of Colorado legislation line-up locomotives matter miles Mobile movement of track operating rules operation of trains Pacific passenger train PATTERSON percent persons president promote safety proposed radio rail railroad operation railway recommendations require result road rules and regulations safety of railroad section 25 Senator BRICKER Senator JOHNSON Senator MCFARLAND Senator MYERS Senator REED Senator TOBEY signal systems SOUBY speed SPLAWN statement switch telegraph testimony tion track motorcars train accidents train communication train control train dispatcher train orders train stop train-service units WEBSTER