THE ERIE RAILROAD COMPANY
Rules for Searchlight Signals
1930 Rule Book
MAXIMUM AUTHORIZED SPEED - The maximum speed authorized by timetable, or by
Special Order, for a Division or Sub-division.
MEDIUM SPEED - One half maximum authorized speed at point involved, but not to exceed thirty miles per hour, unless
SLOW SPEED - Fifteen miles per hour, unless otherwise provided.
RESTRICTED SPEED - Proceed prepared to stop short of train, obstruction or anything that may require the speed
of a train to be reduced.
SIGNAL USAGE AND TYPE DEFINITIONS
SIGNAL ASPECT - The appearance of a fixed signal conveying an indication as
viewed from the direction of an approaching train.
SIGNAL INDICATION - The information conveyed by the aspect of a signal.
BLOCK SIGNAL - A fixed signal at the entrance of a block to govern trains and engines entering and using that block.
REAR OF A SIGNAL - The side of a signal from which the indication is received.
ADVANCE OF A SIGNAL - The side of a signal opposite from which the indication is received.
GRADE SIGNAL - A circular yellow disc or a disc with the letter G displayed thereon attached to a block signal.
DISTANT SIGNAL - A fixed signal used in connection with one or more signals to govern the approach thereto.
HOME SIGNAL - A fixed signal at the entrance of a route or block to govern trains or engines entering and using
that route or block.
DWARF SIGNAL - A low home signal.
FIXED SIGNAL - A signal of fixed location indicating a condition affecting the movement of a train or engine.
(NOTE) -- FIXED SIGNAL - The definition of this type signal covers such signals as switch, train order, block,
interlocking, semaphore, disc, stop boards yard limit boards, slow order boards, detour signs or govern other means
of displaying indications that the movement of a train or engine.
BLOCK SIGNAL TYPES
STOP AND PROCEED SIGNAL - A block signal to which is attached a number plate.
STOP SIGNAL - A block signal having no number plate.
INTERLOCKING - An arrangement of signals and signal appliances so interconnected
that their movements must succeed each other in proper sequence and for which Interlocking Rules are in effect.
An Interlocking may be operated manually or automatically.
INTERLOCKING LIMITS - The tracks between the opposing home signals of an Interlocking.
INTERLOCKING SIGNALS - The fixed signals of an Interlocking.
Web Page and Presentation Copyright ©1998, Henry J Sundermeyer