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146 Cards in this Set
- Front
- Back
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FRICTION BRAKE
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Controlled air-blended system applying stopping forces to brake discs on each axle.
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TRACK BRAKE
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An electro-magnetic brake located between the wheels of each truck which functions through friction contact with the running rail.
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NORMAL SERVICE BRAKING
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A combination of friction and dynamic brake used by the Train Operator to provide a controlled braking effort.
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DYNAMIC BRAKING
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A braking mode which utilizes traction motors, operating as generators, to provide a controlled braking effort for the LRV.
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EMERGENCY BRAKING
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An irretrievable braking application used for emergency conditions activated by the red "mushroom" button on the operator's console utilizing Friction and Track Brake plus automatic application of sand.
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FULL SERVICE BRAKING
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Highest level of normal Service Brake utilizing Dynamic and Friction Brake)
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MAXIMUM BRAKING
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Highest level of retrievable braking utilizing Full Service and Track Brake, Slip/Slide and automatic application of sand.
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MINIMUM BRAKING
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The lowest level of normal service braking.
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TRAIN STOP SYSTEM (TSS) BRAKING
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Irretrievable forced brake application activated by TSS utilizing full Friction and Dynamic Brake plus automatic application of sand.
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BULLETIN
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A written instruction which contains a permanent change to the rules.
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BUMPING POST
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Structure at the end tracks to prevent LRV's from leaving end of the track.
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BYPASS
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A means of overriding a specific function.
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CAB
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The operating compartment of a LRV from which control is achieved; the Train Operator's position.
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CATENARY
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A system of overhead wires including contact wire, feeder wires, messenger wires and hangers which supplies power to the LRV via the pantograph.
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CONSIST
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The number and specific identity of LRV(s) that make up a train.
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ACCIDENT
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An unforeseen event or occurrence which results in injury or property damage.
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PREVENTABLE ACCIDENT
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Any occurrence involving equipment or personnel which results in property damage or person injury that could have been prevented by the application of Rules or Procedures or by reasonable action by personnel involved in the occurrence.
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ASPECT
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The combination of color and position of a fixed signal, light or lights which convey an indication as viewed by a Train Operator.
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AUDIBLE AND VISUAL WARNING DEVICES
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Audible warning devices on the LRV such as horn, whistle, gong and visual warning devices such as turn signals and strobe light.
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AUTOMATIC WARNING DEVICES
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Gates, flashers and bells at a grade crossing which are automatically activated by the approach of a train.
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AUXILIARY LIGHTS
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High-intensity lights mounted above the cab window of the LRV.
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BALLAST
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Selected material placed onto the rail roadbed for the purpose of holding the track in alignment and profile.
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BERTH
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The space designated for a train of given length to occupy when it is stopped at the station platform, in a terminal or other designated location.
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BLOCK
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A length of track having defined limits with it's occupancy governed by fixed signals or Controller's orders.
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ABSOLUTE BLOCK
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A block which no train is permitted to enter while it is occupied by another train. This block is strictly governed by the Controller.
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AUTOMATIC BLOCK
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Block occupancy controlled by automatic block signals and TSS.
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MANUAL BLOCK
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A method used by the Controller to maintain train separation by use of interlocking Signals, personnel or specific locations such as stations.
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PERMISSIVE BLOCK
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A method whereby a Train Operator is authorized by the Controller to enter a block already occupied by another train.
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BLUE FLAG
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A portable blue light, flag or marker placed on or near each end of a LRV or vehicle to protect it against being moved, energized or coupled to another LRV or vehicle.
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CONTACT WIRE
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The electrical conductor which provides the 845 Volt Direct Current (VDC) to the LRV through contact with the pantograph.
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COUPLER
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A device for making a mechanical , electrical and pneumatic connection when physically joined with an LRV or other rail equipment.
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CROSSOVER
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Two connected switches that provide a route from one track to another.
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DEADMAN CONTROL
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A device incorporated into the master controller which must be held in the operation position before train movement can occur and if released will bring the moving train to a stop.
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DE-ENERGIZE
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To turn off overhead catenary system electrical power.
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DERAIL
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A protective device designed to cause rail equipment wheels to leave the rails in order to prevent intrusion into an unauthorized area.
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DERAILMENT
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When the wheels of a piece of rail equipment leave the normal profile of the rails.
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DIVERGING ROUTE
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A change in train movement from one track to another over a track switch(es) set in the reverse position.
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DWELL TIME
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A period of time measured from the instant a train berths at a station until the instant it resumes moving.
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ELECTRIC SWITCH LOCK
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An electrical device which locks the switch in position and prevents the movement of a switch until the lock is electronically removed.
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EMERGENCY
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A condition, situation or occurrence of a serious nature, developing suddenly, unexpectedly, and demanding immediate action.
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ENERGIZE
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To turn on overhead catenary system electrical power.
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FLAG
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A device for relaying signals indicating a condition on the right-of-way. A flag may be made of cloth, metal or other suitable material, and may be a light during hours of darkness.
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FLAGGER
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An employee assigned to protect persons and equipment working on or near the tracks to ensure the safe passage of trains.
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FLAGGING PROTECTION
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Flags, lights and/or personnel used by work crews for protection while working on or about the track.
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FOULING POINT
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The location on a track beyond which a train will interfere with train movement on an adjacent track.
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GRADE CROSSING
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A location where a public highway, road, street, or private roadway, including associated sidewalks and pathways, crosses one or more railroad tracks at grade level.
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GREEN BAND OPERATION
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An operation where traffic signals are timed such that a train maintaining designated speed does not stop at any intersection between stations.
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GUARD RAIL
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A rail mounted to the inside of the running rail designed to keep the LRV wheels in line with the track at switches or curves as required.
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HANGER
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A vertical fitting on the catenary system spaced at regular intervals which suspends the contact wire from the messenger wire.
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HEADWAY
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The time interval between two trains, both traveling in the same direction on the same track, measured at a specific reference point.
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HI-RAIL EQUIPMENT
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Tire mounted vehicles equipped with flanged steel wheels that allow the vehicle to travel on tracks and roadways.
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INCIDENT
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An unforeseen event or occurrence which does not result in injury or property damage.
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INDICATION
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The information conveyed by a signal.
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INDICATOR
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A signal which provides information regarding switch position, terminal routing and conditions immediately ahead in line-of-sight operation and traffic signal green band operation. Indicators do not have Train Stop System (TSS).
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BLOCK INDICATOR
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An indicator in selected sight-restricted areas of line-of-sight operation which provides information regarding conditions immediately ahead for one block only.
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GREEN BAND INDICATOR
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An indicator located in areas of green band operation, coordinated with the highway traffic signal system.
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SWITCH POSITION INDICATOR
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An indicator (target or illuminated) at manual and electric switches displaying alignment for straight or diverging route.
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TERMINAL INDICATOR
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An indicator at the entrance/exit to terminal stations which governs train movement into or out of the station.
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INTERLOCKING
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An arrangement of signals, switches and control apparatus interconnected such that functions must succeed each other in a predetermined sequence, thus permitting train movements over routes only if non-conflicting conditions exist.
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ISLAND CIRCUIT
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An electrical circuit located beneath tracks in close proximity to each grade crossing, Crossing gates can be activated by train occupancy over this circuit.
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LIGHT RAIL VEHICLE (LRV)
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An electrically propelled, passenger carrying rail vehicle characterized by high acceleration and braking rates and frequent stops.
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LINE-OF-SIGHT OPERATION
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Operation on sections without block signals where Train Operators control their trains based on maintaining adequate separation from preceding trains through visual observation.
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LINE-OF-SIGHT TERRITORY
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Mainline tracks not protected by block signals.
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LOCAL CONTROL PANEL (LCP)
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A control panel in Signal Houses for the operation of signals and switches within an interlocking.
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MAINLINE
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The territory controlled by the Controller consisting of all tracks outside of Yard Limits.
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MASTER CONTROLLER
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The device that allows the Train Operator to control movement of the train.
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MESSENGER WIRE
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The uppermost conductor in a catenary system from which the contact wire is suspended by means of hangers.
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MID-CAB OPERATION
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A mode of operation where the lead cab is inoperable and the train is controlled from a cab in the middle or rear of the consist.
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NO CLEARANCE AREA
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An area where no clearance exists for a person to stand between a LRV and a structure adjacent to the tracks.
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NOTICE
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A written instruction which contains temporary specific instructions or modifications to the rules for a defined period of time.
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PROCEDURE NOTICE
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A written instruction which contains instruction to the Operating Personnel
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OPERATING CLEARANCE
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Written instructions regarding train operations containing temporary restrictions and advisories.
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OVERHEAD CONTACT SYSTEM (OCS)
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The system of overhead wires and support structures which supplies electrical power to trains.
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PANTOGRAPH
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A roof mounted device on an LRV for collecting 845 volts DC power from the catenary.
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HIGH-BLOCK PLATFORM
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The elevated platform structure at the forward end of each station platform to be used by passengers unable to use the LRV steps.
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POCKET TRACK
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Diverging track section between mainline tracks used for storing, re-routing, or reversing direction of trains.
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PORTAL
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The point at which trains enter or leave the tunnel.
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QUALIFIED EMPLOYEE
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An employee who is properly trained and certified, and possesses the necessary certification for the operation of vehicles and equipment on the mainline or yard.
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RELIABLE WATCH
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A watch capable of indicating time in hours, minutes and seconds continuously on the same display.
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RESTRAINING RAIL
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A rail mounted to the inside of the running rail designed to keep the wheels in line with the track around curves.
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RIGHT-OF-WAY
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The area within fifteen (15) feet of the centerline of any track on the mainline.
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ROUTE
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A path a train is to follow.
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RUN-THROUGH OPERATION
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By-passing a station platform without stopping.
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SECTIONALIZE
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To de-energize specific sections of overhead contact system for work or other purpose.
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SECTION INSULATOR
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A device for dividing the overhead contact system into electrical sections.
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SERVICE & INSPECTION FACILITY (S&I)
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LRV shop and facilities used for maintenance, repair and inspection of the LRV fleet.
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SERVICE WALKWAY
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A designated area on bridges and in tunnels where personnel are to stand/walk and adequate clearance is provided from approaching trains.
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SIGNAL
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A method of conveying visual indication to the Train Operator concerning conditions affecting the train movement.
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AUTOMATIC BLOCK SIGNAL
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Block signals located at and between interlockings governing train movement. All automatic block signals are protected by the Train Stop System.
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FIXED SIGNAL
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A signal at a specific location along the track area. It could be used to indicate conditions of train movement. (ie block signal, operating sign, indicator, or other devices)
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HAND SIGNAL
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A signal indication used to govern train movement by the motion or position of a person's hand and arm.
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INTERLOCKING SIGNAL
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A block signal governing the use of an interlocking and the track beyond. All interlocking signals are protected by the Train Stop System.
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SINGLE TRACK OPERATION
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The operation (within defined limits) of trains in both directions on a single track on the mainline.
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SLIP/SLIDE SYSTEM
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An automatic system for detecting and preventing excessive LRV wheel slips and slides during acceleration and braking.
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SLOW ZONE
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An area within defined limits where rail equipment speed is reduced for a specific purpose.
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SPEED
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The rate at which a train or vehicle is permitted to travel.
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NORMAL SPEED
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The maximum authorized speed, but not exceeding 65 mph.
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RESTRICTED SPEED
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Speed which will permit stopping short of another train, broken rail, stop signal, switch not properly aligned, inoperative grade crossing equipment, or other obstruction. This speed is not to exceed 20 mph.
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STREET RUNNING SPEED
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a speed not to exceed posted speed in non-signalized territory (i.e Green Band indicators) on shard right-of-way in which the operation is governed by applicable motor vehicle laws and regulations in addition to Operation Rules
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PASSENGER STATION
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a place adjacent to the track which is designated for the purpose of loading and unloading passengers
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STANDARD OPERATING PROCEDURES
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Instructions governing the operation, performance, and procedural responsibility for th LRT operations
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STROBE
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A flashing white light mounted on the roof of the LRV. It is automatically activated when the horn, whistle or going are activated and can be manually activated.
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TRACTION POWER SUBSTATION
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A facility used to rectify and distribute electricity to the LRT system
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SUPERVISORY CONTROL AND DATA ACQUISITION
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A system that supervises, monitors and or controls LRT signal, traction power, communication, tunnel ventilation, tunnel electrical, and fare collection systems. SCADA will also sound and record alarms and malfunctions for each of these system
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SWITCH
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a device enabling LRV or rail vehicle movement from one track to another
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DUAL CONTROL SWITCH
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A track switch that can be thrown either by hand or by power. When in the power mode, it can be thrown from the local control panel or Train Control Center as well as by the Trin0to0Wayside Communication (TWC) Subsystem
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MANUAL SWITCH
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Manually operated switch
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MOVEABLE POINT FROG SWITCH
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A frog equipped with points which are moveable in the same manner as the points on a switch which forms a continuous path
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POWERED SWITCH
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Switches in the yard which are power operated and controlled by Route Selector Panel and TWC, but cannot be controlled by TCC.
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SPRING SWITCH
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A manual switch with a spring incorporated into the operating mechanism which enables the points to return to their original position after each wheel has passed through the switch in a trailing movement
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TONGUE AND MATE SWITCH
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A manual switch located in the embedded track thrown by the Train Operator utilizing a switch iron
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FACING POINT SWITCH
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A switch aligned such that the switch points face toward the approaching train movement
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NON-TRAILABLE SWITCH
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A Switch that must be properly aligned prior to making a trailing move
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TRAILABLE SWITCH
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A switch over which a trailing move can be made regardless of switch point position
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TRAILING POINT SWITCH
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A switch aligned such that the switch points face away from the approaching train movement
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SWITCH CRANK
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A devise which is used to manually set the switch alignment
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SWITCH POINTS
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Movable section of track which aligns switch to desired direction of travel
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NORMAL SWITCH POSITION
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The switch position aligned to allow straight movement over a track switch
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REVERSE SWITCH POSITION
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The switch position aligned to allow diverging train movement over a track switch
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TAIL TRACK
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A designated track or sidings at specific locations used for train or equipment storage
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TERMINAL STATION
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End of line station
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TEST LIMITS
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Beginning and end of a test section within defined limits
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TEST ZONE
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A section(s) of right-of-way under testing prior to release for revenue service
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TRACTION POWER SYSTEM
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The electrical power distribution system which provides 845 volts DC to the Overhead Catenary System
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TRAFFIC
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Movement of trains over a mainline track.
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NORMAL TRAFFIC
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Movement of trains over a mainline track in the direction prescribed by the rules for that track
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REVERSE TRAFFIC
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Movement of trains over a mainline track in the direction opposite to that prescribed by the rules for that track
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TRAIN
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a consist of one or more LRVs coupled as an operating unit displaying headlights to the front and taillights to the rear
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SCHEDULE TRAIN
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A train designated by timetable to carry passengers
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UNSCHEDULED TRAIN
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A train not designated by a timetable. Unscheduled trains may carry passengers as directed by the Controller
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TEST TRAIN
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A train used to troubleshoot or verify LRV or wayside systems. A test train is not designated by a timetable and will not carry passengers unless directed by the Controller
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WORK TRAIN
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A rail maintenance vehicle used to assist on-track maintenance or for other purposes.
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RESCUE TRAIN
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A train used to retrieve a disabled train or passengers from a disabled train
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TRAIN CONTROL CENTER (TCC)
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A facility from which all LRT mainline operations are directed by a Controller. The train Control Center is responsible for and has authority to control mainline operations. This includes train movement, coordination of all maintenance activities, and control over the TES/OCS systems
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TRAIN LENGTH
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The overall length of a train in dimensions of distance or number of LRVS
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TRAINLINE
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Electrical and pneumatic control circuits which run the full length of the train so that operational commands are transmitted to all LRVS'S in the train from the operating cab
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TRAIN OPERATOR
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The qualified employee having direct control and responsibility for the safe movement of a train
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TRAIN STOP SYSTEM (TSS)
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An electro-magnetic device that stops a train in the event of unauthorized train movement to ensure observance of governing signal indication
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TRAIN-TO-WAYSIDE Communications (TWC)
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A system where the train and wayside equipment (TWC Loops) Provide electronically coded information to subsystem equipment
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TRUCK
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The undercar frame containing the wheels, axles, motors, and associated braking components of the LRV
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TURNOUT
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A track arrangement of a switch and from with guard rails by means of which trains may be diverted from one track to another
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WAYSIDE SIGNS
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a fixed sign along the right-of-way conveying operational information to the Train Operator
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YARD LEAD
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A designated non-revenue, signalized track, between the Yard Limits and Santa Fe Interlocking
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YARD LIMITS
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A specific location which designates the separation of yard tracks and mainline tracks
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YARD TRACKS
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All tracks within yard limits used for LRV storage, repair, or other purposes as prescribed by the rules
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YARD OPERATION CONTROL (YOC)
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A facility from which all LRT yard operations are directed by a controller. The Yard Operation Control Center is responsible for and has authority to control yard operations. This includes train movement, coordination of all maintenance activities, and control over the TES/OCS systems
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