Cab Signal

Some articles on cab signal, signals, cab, signal, cab signals:

Conemaugh Line - History
... the recipient of a variation of the PRR's cab signal system in 1940, which eliminated the wayside signals between interlockings from Conpitt Junction to Kiski Junction ... Kiski to Pittsburgh also uses bidirectional signaling, however this section uses wayside signals but is NOT cab-signal energized ...
Cab Signalling - Information Transmission - Mechanical
... The most basic type of cab signal system is one that relies on mechanical contact between wayside equipment and the train ... If a stop signal is displayed, a trip-arm located next to the running rails becomes "raised." On the bogies/trucks of the underground/subway cars, there is an emergency brake valve ... If a train overruns a stop signal, the raised arm would strike the emergency brake valve, causing the train's compressed air line to depressurize or be "dumped." The ...
Advanced Civil Speed Enforcement System - Redundancy
... of BCMs, the WCM examines the indication RF signal strength of each BCM that heard the locomotive to determine what the strongest talk path back to the locomotive is ... As a locomotive moves from region to region, the radio signal strengths recorded by BCMs which get conveyed to the WCMs change ... Finally, the cab signals are considered a completely independent system that transmits a continuous stream of codes through the rails instead of via wireless ...

Famous quotes containing the words signal and/or cab:

    The experience of a sense of guilt for wrong-doing is necessary for the development of self-control. The guilt feelings will later serve as a warning signal which the child can produce himself when an impulse to repeat the naughty act comes over him. When the child can produce his on warning signals, independent of the actual presence of the adult, he is on the way to developing a conscience.
    Selma H. Fraiberg (20th century)

    Pockets: What color is a giraffe?
    Dallas: Well, mostly yellow.
    Pockets: And what’s the color of a New York taxi cab?
    Dallas: Mostly yellow.
    Pockets: I drove a cab in Brooklyn. I just pretend it’s rush hour in Flatbush and in I go.
    Leigh Brackett (1915–1978)