B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
B61L29/00—Safety means for rail/road crossing traffic
B61L29/24—Means for warning road traffic that a gate is closed or closing, or that rail traffic is approaching, e.g. for visible or audible warning
B61L29/28—Means for warning road traffic that a gate is closed or closing, or that rail traffic is approaching, e.g. for visible or audible warning electrically operated
B61L29/286—Means for warning road traffic that a gate is closed or closing, or that rail traffic is approaching, e.g. for visible or audible warning electrically operated using conductor circuits controlled by the vehicle
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Engineering & Computer Science
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Mechanical Engineering
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Train Traffic Observation, Control, And Security
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The Invention of the Track Circuit: The History of Dr. William Robinson's Invention of the Track Circuit, the Fundamental Unit which Made Possible Our Present Automatic Block Signaling and Interlocking Systems
The Invention of the track circuit: the history of Dr. William Robinson's invention of the track circuit, the fundamental unit which made possible our present automatic block signaling and interlocking systems
A Treatise on Perfect Railway Signaling: Describing the Development of the Electric Telegraph and Block Signaling Systems, Their Damage and Derangement During Thunderstorms, and Explaining the Requirements for Reliable Signaling