LIRR Definitions.txt

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  1. Indication
    The information conveyed by the aspect of a signal
  2. Block signal system
    A series of consecutive blocks
  3. Multiple unit equipment
    Equipment capable of being propelled by electrical energy through the use of third rail contact shoes
  4. Block
    A length of track of defined limits, the use of which is governed by block signals, block-limit signals, automatic speed control or any combination thereof.
  5. Engine
    A unit propelled by any form of energy or a combination of units operated from a single control, used in road or yard service.
  6. Automatic Speed Control System (ASC)
    A system so arranged that its operation will automatically result in the following:

    A full service application of the train brakes if, while operating under a speed restriction, the speed of the train exceeds the predetermined rate. the application Will continue until the train is either brought to a stop or under the control of the engineer, its speed is reduced to the predetermined rate.
  7. Main Track
    A designated track upon which trains are operated by timetable, Form L, or both or the use of which is governed by block signals.
  8. Train
    An engine or more than one engine, with or without cars, displaying markers.
  9. Marker
    A highly-visible marking device in the red-orange-amber color range, affixed to the rear of the train to indicate that the train is complete.
  10. Regular Train
    A train authorized by a timetable schedule
  11. Interlocking
    An arrangement of signals and signal appliances so interconnected that their movement must succeed each other in proper sequence and for which interlocking rules are in effect.
  12.  Cab Signal Indicator
    A signal indicator located in the engine control compartment displaying the maximum speed for the movement of the train.It will be used in conjunction with interlocking signals and either in conjunction with or in lieu of block signals
  13. Timetable
    The authority for the movement of regular trains subject to the rules.It contains classified schedules and special instructions relating to the movement of trains.
  14. Superior Train
    A train having precedence over another train.
  15. Electric Lock Switch
    A hand operated switch equipped with an electrical device that restricts the movement of the switch.
  16. Home Signal
    A fixed signal that displays Stop as its most restrictive aspect and governs the entrance to a route or block.
  17. Block Signal
    A fixed signal or hand signal in the absence of a fixed signal, at the entrance to a block that governs trains using that block.
  18. Passenger Station
    A place at which trains are scheduled to receive and/or discharge passengers.
  19. Manual Block Signal System
    A block signal system wherein the use of each block is governed by block signals controlled manually, by block-limit signals or both, upon information received by telephone, radio or other means of communication.
  20. Foul Time
    A method of establishing working limits on a main track, secondary track or siding in which a roadway worker is notified by the Train Dispatcher through the Block Operator that no trains will operate within the working limits established on that track until the roadway worker reports clear of the track.
  21. Job Briefing
    When reporting for duty, employees whose duties require coordination with other employees must hold a job briefing to review operational and safety conditions.  If these conditions change, employees must hold an additional job briefing to discuss the new conditions.
  22. Train of Superior Direction
    A train given precedence in the direction specified as between opposing regular trains.
  23. Spring Switch
    A switch equipped with a spring mechanism that will restore the switch points to the normal position after having been trailed through.
  24. Interlocking Limits
    The tracks between the extreme opposing home signals of an interlocking.
  25. Automatic Block Signal System
    A block signal system wherein the use of each block is governed by an automatic block signal, the cab signal indicator or both.
  26. Restricted Speed
    A mode of operation, at which a train can be stopped within one half the range of vision, short of the next signal, another train, obstruction, derail, or switch improperly lined, looking out for broken rail or crossing protection not functioning, not exceeding 15 miles per hour.
  27. Siding
    A designated track adjacent to a main track for the meeting or passing of trains.
  28. Fixed Signal
    A signal of a fixed location indicating a condition which affects the movement of a train.
  29. Aspect
    The appearance of a fixed signal which conveys an indication as viewed from the direction of an approaching train; the appearance of a cab signal indicator as viewed in the engine control compartment.
  30. Limited Speed
    A speed not exceeding 40 mph.
  31. Two Or More Tracks
    Two or more main tracks upon which trains are operated as designated in the special instructions.
  32. Interlocking Signals
    The fixed signals of an interlocking.
  33. Medium Speed
    A speed not exceeding 30 mph, except in ASC territory, train will be governed by speed displayed on the cab signal indicator not to exceed 40 mph.
  34. Absolute Block
    A block established between block stations, block limit stations, interlockings or any combination thereof which must not be occupied by more than one train except as provided by the rules.
  35. Distant Signal
    A fixed signal used to govern the approach to a home signal.
  36. Speed Controlled Train
    A train equipped with the following speed control apparatus, a cab signal indicator, sealed application valve or switch, audible warning device and acknowledging switch, in operative condition for the direction in which it is to move.
  37. Slow Speed
    A speed not exceeding 15 mph, except in ASC territory, train will be governed by speed displayed on the cab signal indicator not to exceed 30 mph.
  38. Crossover
    A track connection between two adjacent, not necessarily parallel tracks, consisting of a minimum of two switches, which is intended to be used primarily for the purpose of crossing over from one track to another.
  39. Push-Pull Train
    A train consisting of a bi-level cab control car at one end and a diesel or dual mode locomotive at the opposite end.
  40. Block-Limit Signal
    A fixed signal indicating the limit of the block, the use of which is governed by manual block signal system rules.
  41. Derail
    A track safety device, fixed or portable, designed to guide a car off the rails at a selected location on a track as a means of protection against collisions or other accidents.
  42. Dual Control Switch
    A power-operated switch also equipped for hand operation.
  43. Working Limits
    A segment of track with definite boundaries upon which trains may move only as authorized by the roadway worker in charge of that segment of track.
  44. Controlled Siding
    A designated track, the entrance and exit of which are governed by home signals.
  45. Block-Limit Station
    A place at which a block-limit signal is displayed.
  46. Track Car
    A roadway maintenance machine, not classified as an engine, which is operated on track for inspection or maintenance.  It may not shunt track circuits or operate signals and will be governed by rules and special instructions for trains other than passenger trains.
  47. Block Station
    A place at which manual block signals are displayed.
  48. Interlocking Switch
    A switch within interlocking limits controlled by the Block Operator or Train Dispatcher working in conjunction with interlocking signals and other interlocking appliances.
  49. Flagman
    When used in relation with roadway worker safety, an employee assigned to direct or restrict the movement of trains past a point on a track to provide on-track safety for roadway workers, while engaged solely in performing that function.
  50. Interlocking Station
    A place from which an interlocking is operated.
  51. Station
    A place designated by name on the station pages of the current timetable.
  52. General Notice
    A notice issued to employees by the General Superintendent-Transportation.  It may contain operating instructions or other information as may be necessary.
  53. Maximum Authorized Speed (MAS)
    The highest speed that is permitted over a specific portion of the railroad.  It may be authorized by the special instructions of the current timetable, Rules of the Operating Department or any other publication authorized by the General Superintendent-Transportation.
  54. Yard
    A system of tracks, other than main tracks, secondary tracks or sidings, used for making up trains, storing cars and other purposes.  All movements are subject to prescribed signals, rules and special instructions.
  55. General Order
    An order issued to employees by the General Superintendent-Transportation.  It may change or annul operating rules, timetable information or special instructions.
  56. Schedule
    That part of a timetable that prescribes direction, number and movement of a regular train.
  57. Hand-Operated Switch
    A switch that must be aligned by hand before a train makes a trailing point movement through the switch.
  58. Single Track
    A main track upon which trains are operated in both directions.
  59. Reduced Speed
    A speed at which a train can be stopped short of another train or obstruction.
  60. Timetable
    The authority for the movement of regular trains subject to the rules.  It contains classified schedules and special instructions relating to the movement of trains.
  61. Automatic Safety Switch
    A switch identified by a yellow switch stand.  Trains may make trailing point moves through the switch without previously aligning it by hand except as specified by timetable special instruction.
  62. Extra Train
    A train not authorized by a timetable schedule.  It must be designated as: Passenger Extra - for passenger train extra Work Extra- for work train extra Track Car Extra - for track car extra Extra - For any other extra train except passenger extra, work extra or track car extra.
  63. Train Of Superior Right
    A train given precedence by Form L.
  64. Passenger Train
    A train carrying revenue passengers
Card Set
LIRR Definitions.txt
LIRR Definitions
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