Friday Norac Definitions

Front 1

Absolute Block

Back 1

A block that must not be occupied by more than one train.

Front 2

Authorized Business Purpose

Back 2

A purpose directly related to the tasks that an employee is expected to perform during the current Tour of Duty, as specified by the railroad in writing.

Front 3

Block

Back 3

A length of track with defined limits on which train movements are governed by block signals, cab signals, or Form D.

Front 4

Blue Signal

Back 4

A clearly distinguishable blue flag, blue light or blue tag by day, or a blue light or blue tag by night. When displayed, it signifies that workers are on, under or between equipment.

Front 5

Bulletin Order (BO)

Back 5

A publication used to notify employees of changes to rules, procedures, or other instructions affecting the movement of trains. Bulletin orders are issued periodically by the designated officer.

Front 6

Control Station

Back 6

The dispatcher's office or the location where the operator is on duty, from which remote control signal appliances or switches are operated.

Front 7

Controlled Siding (CS)

Back 7

A circuit siding in which both ends are controlled and governed by signals under the control of a dispatcher or operator.

Front 8

Controlled Signal

Back 8

A fixed signal, capable of displaying stop indication, that is controlled by a dispatcher or operator.

Front 9

Crossover

Back 9

A combination of two switches connecting two adjacent tracks. When lined, this which combination allows movements to cross from one track to the other.

Front 10

Current Of Traffic

Back 10

The assigned direction of movement on a rule 251 main track, as specified in the timetable.

Front 11

Derail

Back 11

A track safety device designed to guide a car off the rails at a selected spot as a means of protection against collisions or other accidents.

Front 12

Division Notice

Back 12

A publication issued periodically by the designated officer, which contains instructions or information which do not affect the movement of trains.

Front 13

General Order (GO)

Back 13

A publication used to summarize changes to the timetable and other instruction manuals. General orders contain revision pages and are issued periodically by the designated officer.

Front 14

Marker

Back 14

A reflector, flag, or highly visible marking device, in the red-orange-amber color range, affixed to the rear of a train to indicate that the train is complete.

Front 15

Personal Electronic Device

Back 15

An electronic device that was not provided to the employee by the railroad for an authorized business purpose.

Front 16

Positive Train Control System (PTC)

Back 16

Electronic Train control system which enforces normal speed, temporary speed restrictions, stop signals, or other conditions requiring a train stop.

Front 17

Push-Pull Train

Back 17

A passenger train with a multiple-unit (MU) or control car on either end.

Front 18

Railroad Supplied Electronic Device

Back 18

An electronic device provided to an employee by the employing railroad for an authorized business purpose. A railroad supplied device will be considered a personal electronic device when it is being used by the employee for a purpose other than an authorized business purpose.

Front 19

Schedule

Back 19

Part of the timetable that prescribes Direction, number, frequency, and times for movement of designated trains.

Front 20

Scheduled Train

Back 20

A train designated by timetable schedule.

Front 21

Signal Aspect

Back 21

The signal appearance, which conveys an indication as viewed either (1) from the direction of an approaching train, or (2) on the cab signal display unit in the engine control compartment.

Front 22

Signal Indication

Back 22

The required action conveyed by the aspect of a signal.

Front 23

Normal Speed

Back 23

The maximum authorized speed.

Front 24

Limited Speed

Back 24

For passenger trains, not exceeding 45 MPH; for freight trains, not exceeding 40 MPH.

Front 25

Medium Speed

Back 25

Not exceeding 30 MPH.

Front 26

Slow Speed

Back 26

Not exceeding 15 MPH.

Front 27

Restricted Speed

Back 27

A method of operation that permits stopping within half the range of vision, and includes specific Provisions for controlling the movement, maintaining vigilance and maximum authorized speed. Movements made at restricted speed are governed by rule 80.

Front 28

Station

Back 28

A place designated on the station pages of the timetable by name.

Front 29

Timetable

Back 29

A printed booklet that contains schedules and/or special instructions affecting the movement of trains.

Front 30

Train

Back 30

An engine or more than one engine coupled, with or without cars, displaying a marker.