Metrorail Emergencies Manual, 2ndEdition, May 2016 Flashcards
A short section of third rail found just beyond some station platforms, to ensure uniform train acceleration.
Accelerator Rail (Kicker Rail)
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One or more rooms in all Metro stations wherein electricity from the utility company is received and distributed for station and Rail Roadway use.
AC Switch Board Room
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Any portion of the Rail Roadway above the level of the surrounding terrain usually supported on columns spanned by concrete or steel beams.
Aerial Structure
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Rooms in or near a rail station containing mechanical equipment or service facilities and where most smoke and heat detectors are located.
Ancillary Rooms
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The Track or station constructed at or near the surrounding ground surface level.
At-Grade
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The coarse gravel that forms a bed for a railroad, for the purpose of creating surface to hold the track in line.
Ballast
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The door on the end of a rail car used for employee passage from car-to-car or for disembarking between stations during emergencies.
Bulkhead Door
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What are Chain Markers and how far apart are they?
A measurement system sign displayed every 100 feet along the Rail Roadway.
The sign denotes the distance in feet from teh HUB, the center point of the line (either Metro Center or Gallery Place).
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A chain marker written as K2 [color] 525+00 would be interpreted as what?
K line, track 2, Orange Line, 52,500 feet from the HUB.
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The car-borne device designed to slide on the third rail to pick up DC propulsion current.
Collector Shoe
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A railroad term that denotes the number of rail cars in a train.
Consist
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A mechanical device on each end of a rail car used to connect one car to another.
Coupler
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A method of train breaking where kinetic energy from train movement generates current at the traction motors, and is dissipated by the resistor grids.
Dynamic Breaking
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The portion of track constructed above the adjacent ground surface (aerial structures and stations).
Elevated (or Aerial) Rail Roadway (RRW)
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A safety feature that allows emergency responders to open side center doors without a key and with or without train door power.
Emergency Evacuation Door Release (EEDR).
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What are Emergency Trip Stations (ETS)?
What do they contain and how are they identified?
Boxes or cabinets located approximately every 800 feet along the Rail Roadway and at the ends of station platforms.
These boxes contain a telephone for communicating with Rail Operations Control Center (ROCC), an Emergency Trip Switch (button) to de-activate third rail power, and a power graphics map for identifying the sections of the third rail affected by this particular ETS.
They are identified by a blue light on top of the box or cabinet.
*May also be known as blue light stations.
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A hand held voltage-testing device used to test the third rail for the presence of electrical current.
Hot Stick
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The process of moving a rail car away from the platforms to free a trapped victim.
Lateral Jacking or Jacking
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Telephones found in station service rooms and the Kiosk. They allow access to ROCC by dialing a five-digit phone number.
Private Automatic Branch Exchange (PABX)
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The space below the safety walk, usually on an aerial track bed, where wiring and other metro equipment can be found.
Raceway
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The terminus for automatic train control information, trouble alarms, and radio transmissions.
Rail Operations Control Center (ROCC)
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The area considered to be the space inside the tunnel walls, at-grade between the fences or between the railings on aerial structures. (Formerly known as _________).
Rail Roadway (RRW)
Right of Way (ROW)
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