Train Orders

only if class is equal; it does not apply to two extra trains in opposing

directions on single track.

Thus, in this text, a first-class westward

train is superior to a second-class eastward train.

1.3.

TRAIN ORDERS

Train orders are written orders delivered to train crews to convey the

dispatcher's instructions. The orders may help or restrict; they may amend,

annul, or supersede the class and directional superiority that the timetable

establishes, as chapter 4 explains. They are the tools a dispatcher uses to

operate trains not listed in the timetable. On occasion, he also uses them

to establish rules for moving trains efficiently over a division when

unusual operating problems occur.

A train order, however, does not waive

compliance with a rule for one train unless it instructs another crew to

protect the first train. Train orders are discussed further in chapter 5.

1.4.

OPERATING RULES

Each American railroad has its own set of operating rules.

They are

based on a standard code but are tailored to fit the operating needs of the

particular line. Even though the rules themselves may be modified, the rule

numbers remain the same. Rule 99, for instance, means the same thing to a

railroader in Iowa as it does to one in Ohio. Although the rules number in

the hundreds, all are important to the safe and efficient operation of

trains.

The rules cover standard time, timetables, signals, train

superiority, movement of trains and engines, and train orders.

Operating rules for military railroads are contained in Technical Manual

(TM) 55-200, Railway Operating Rules; a number of them are quoted in

appendix III.

Two rules are of particular importance to the immediate

discussion, rules 86 and S-87, which are quoted and discussed in the

subparagraphs following.

Note that a rule number without a letter prefix

applies to single and two or more tracks, one with an S to single tracks,

and one with a D to two or more tracks.

a. Rule 86 reads: "Unless otherwise provided, an inferior train will

clear the time of a superior train in the same direction by not less than 10

minutes, but must be clear at the time a superior train in the same

direction is due to leave the next station in the rear where time is shown."

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