Block Signal System
block signal system
[′bläk ′sig·nəl ‚sis·təm] (control systems)
An automatic railroad traffic control system in which the track is sectionalized into electrical circuits to detect the presence of trains, engines, or cars.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.
Block Signal System
a system of technical facilities used in railroad automation and remote control to regulate train traffic on sections of track and at intermediate stations.
The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.