ATO/CBTC
CBTC= Communication-based train control. train relays info (location, speed, destination) to central computer and central computer coordinates movement of all trains accept the ones being manually operated.
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- Discussion related to DC area passenger rail services from Northern Virginia to Baltimore, MD. Includes Light Rail and Baltimore Subway.
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by Sand Box John
"Fan Railer"
ATO/CBTC
CBTC= Communication-based train control. train relays info (location, speed, destination) to central computer and central computer coordinates movement of all trains accept the ones being manually operated.
WMATA does not use a version of Communication Based Train Control.
WMATA's signaling system employs conventional relay logic block signals. Train board automatic train control hardware brakes and accelerates trains based on speed commands transmitted to the train from wayside train control through AF (Auto Frequency) track circuits. Station stops are automatically controlled by marker coils at fixed location on the approaches to each station platform. The marker coils are located 167', 484', 1,200 ' and 2,700 ' from center of each platform on both ends.
The only information transmitted by the trains to wayside train control is train number, number of cars in the train and a destination code.
The destination code tell local wayside what routes the interlocking should be set to.
The train number is displayed on the model board in central control.
The train number along with number of cars in the train is use by the computer that drives the Passenger Information Messaging System displays.
ATO/CBTC
CBTC= Communication-based train control. train relays info (location, speed, destination) to central computer and central computer coordinates movement of all trains accept the ones being manually operated.
WMATA does not use a version of Communication Based Train Control.
WMATA's signaling system employs conventional relay logic block signals. Train board automatic train control hardware brakes and accelerates trains based on speed commands transmitted to the train from wayside train control through AF (Auto Frequency) track circuits. Station stops are automatically controlled by marker coils at fixed location on the approaches to each station platform. The marker coils are located 167', 484', 1,200 ' and 2,700 ' from center of each platform on both ends.
The only information transmitted by the trains to wayside train control is train number, number of cars in the train and a destination code.
The destination code tell local wayside what routes the interlocking should be set to.
The train number is displayed on the model board in central control.
The train number along with number of cars in the train is use by the computer that drives the Passenger Information Messaging System displays.
John in the sand box of Maryland's eastern shore.
