Last week the Pere Marquette Railroad announced successful experiments with an automatic train control similar to the device announced by the Chicago & Northwestern a month ago ( TIME, Oct. 5). Electro-magnetic waves flow into the rails, are picked up by coils under the locomotive's pilot or cowcatcher," condensed, transmitted to signal devices in the engineer's cab. If the engineer is incapacitated or heedless, the current proceeds to operate controls, braking, throttling, halting the train. The incoming signals are despatched automatically by the block towers along the line and keep engineers informed...
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