Automatic train control

TRAIN CONTROL systems which automatically limit railway trains to prearranged speeds, and which are operated by conditions existing on the track ahead of the train, have been installed on many railroads in the last few years. The systems used are of 2 general types, the intermittent type and the continuous type. Brief descriptions of these systems are given in the 3 sections of the article presented herewith. The first section presents a general description of the 2 types of automatic train control, particularly as applied by the Illinois Central Railroad Company. The second section contains details of the intermittent type of control applied by the Baltimore and Ohio Railroad Company; and the third section is a brief description of the 2 forms of the continuous type of control applied by the Reading Company.