Main track--track extending through yards and between stations,
upon which trains are operated by timetable or train order,
or both, or the use of which is governed by block signals.
Pilot--qualified person assigned to a train when the engineman
or conductor, or both, are not fully familiar with the
physical characteristics of or the rules covering any portion
of railroad over which the train is to be moved.
Regular train--train authorized by a timetable schedule.
Schedule--that part of a timetable which prescribes
direction, number, and movement for a regular train.
Section--one of two or more trains running on the same schedule
displaying signals, or for which signals are displayed.
Siding--track auxiliary to the main track, connected by switches
at both ends, that permits trains to clear the main line and
to meet and pass other trains. It should be long enough to
contain the longest train permitted to operate over the
Single track--main track upon which trains are operated in both
Station--place designated on the timetable by name.
Superior train--train having precedence over another train.
Timetable--authority for the movement of regular trains subject
instructions relating to the movement of trains.
Train--engine, or more than one engine coupled, with or without
cars, displaying markers. Markers are attached to the rear
of a train. They are discussed in more detail in paragraph
2. 14. Most laymen think of a train as cars and a caboose
puled by an engine.
This is not always true.
display markers before it constitutes a train. A train must
have an engine, and it must have markers.