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Communications-based train control (CBTC) is a railway signaling system that uses telecommunications between the train and track equipment for traffic management and infrastructure control. CBTC allows a train's position to be known more accurately than with traditional signaling systems.
CITYFLO 650 CBTC system CITYFLO 650 signalling is a CBTC system designed by Bombardier Transportation and later Alstom . It makes use of bi-directional radio communication between trains and wayside equipment, as well as true moving block technology, to control train operation.
Trainguard MT is a communication-based train control (CBTC) developed by Siemens Transportation Systems (ex Matra Transport international, and now integrated into Siemens Mobility) which allows fully automated circulation of rapid transit trains, and thanks to moving block system, less time between trains.
In railway signalling, a moving block is a signalling block system where the blocks are defined in real time by computers as safe zones around each train. This requires both knowledge of the exact location and speed of all trains at any given time, and continual communication between the central signalling system and the train's cab signalling ...
For Alstom, it uses the URBALIS 300 moving-block communications-based (CBTC) Automatic Train Control (ATC) system, which optimizes headway and enables extra trains to be injected automatically into the system at rush hour to increase passenger capacity and reduce congestion. [6] In the depot, trains are also operated in fully automatic mode.
Interoperable Communications Based Signaling (ICBS) is an initiative backed by the Federal Railroad Administration to enhance interoperability and signaling procurement in the railway system of the United States by creating a single national standard for train control and command systems. The concept was launched in 2005 and an interoperable ...
SelTrac is installed in many railways around the world, [5] including the following: Ankara Metro Line M1 1997 SelTrac CBTC DTO; Beijing Subway Line 4 2009 SelTrac CBTC/R (radio) ATO with Attendant; Busan–Gimhae Light Rail Transit 2011 SelTrac CBTC/R UTO; Detroit People Mover 1987 SelTrac CBTC UTO; Dubai Metro – Red and Green Lines 2009/ ...
An example of headway on a railway system with multiple block section. Train B can only enter a section with a green or yellow "aspect" (light), and must reduce speed when passing a yellow signal to the point where they can stop within the sighting distance. Train movements in most rail systems are tightly controlled by railway signalling ...