文档介绍：SUBCOURSE EDITION
TR0636 7
RAIL OPERATIONS, YARD
TRANS SUBCOURSE 636
RAIL OPERATIONS, YARD
INTRODUCTION
You   may   have   often   seen   railroads   in   operation,   cars   being
switched back and forth in busy yards, and trains rolling over the
main line, stopping and starting in obedience to mysterious rules and
signals.  But have you ever stopped to think why these operations are
performed and how the railroads do their lob of delivering freight
and passengers on time to their destination?
Someday you may take part in operating a military rail yard or
terminal.     While   it   is   not   likely   that   this   subcourse   alone   can
qualify   you   to   operate   either,   it   does   introduce   you   to   the
procedures and practices you will find in use there.  After studying
the reference text to the subcourse, you should be able to identify
the   types   of   yards   and   their   distinguishing   characteristics;   to
describe the operations and the clerical work involved in breaking up
and making up trains and in getting them ready for the main line; and
to identify the personnel who perform yard work and describe their
duties.  Finally, you should know some of the rules governing safety
in   rail   yard   operations   and   what   things   to   guard   against   while
working on and around moving engines and cars.
mercial  railroading  is more familiar  than military,
civilian practice is taught; and because the great majority of rail
traffic   is   freight,   classification   yards   and   road   trains   are
discussed from the standpoint of freight operations.   But, military
or civilian, passenger or freight, the principles are the sa