There could be only one reason: it had to do with the railroad timetable.

The starting point of each system was the railroad timetable that would form the advanced routing plan for train movements.

My father the salesman used to tear the extra folds off the railroad timetable, explaining that he was cutting down on his running weight.

A war plan is not a railroad timetable.

What about a railroad timetable from the Great Depression?

The station stops listed (from west to east) are according to railroad timetable and serve as "control points".

The company can supply an Indian railroad timetable for $3.

He's memorized the railroad timetables for half a dozen European cities, hardly trying.

Because railway dining cars were not yet in common use, railroad timetables included water, rest, and meal stops.

And tasting notes in a book, like a railroad timetable, are good for a limited time.