Number of switch crews = SE x 2 x 1.25
= 3 x 2x 1.25
= 6x 1.25
Number of switch crews = 7+ or 8
The number of switch and road crews required determines how many rail
units are needed.
4.5. RAILWAY UNITS REQUIRED
The number and kind of TRS units a rail operation requires are
based principally on the number of transportation railway battalions
necessary. In turn, the number of TRB's required depends on the
number of traincrews, both road and switch, needed. The following
subparagraphs explain the basis for reassignment and capabilities of
transportation railway service units.
a. The transportation railway battalion can provide 40 traincrews
daily through its attached train operating company. Each crew can
work as either a switch or a road crew. Normally, one TRB is
assigned for each railway division to be operated; however, if there
is an exceptionally large yard and terminal on the railroad, an
additional TRB is generally assigned to operate it.
To determine the number of railway battalions that should be
assigned, the total number of road and switch crews required for the
entire line is divided by 40 (number of crews provided daily per
TRB). The number of divisions into which the line is divided,
however, may affect the number of TRB's. For example, if you are
going to operate a threedivision railroad and you need 120 crews,
three TRB's are assigned. If you need 140 crews for the same three
divisions, however, the normal assignment would still be three
battalions, with the additional 20 crews (140 120 = 20) assigned
through augmentation with transportation railway service teams
authorized by Table of Organization and Equipment (TOE) 55520. On
the other hand, if the line were divided into four divisions and 150
crews were required, four TRB's would be assigned to operate it. The
kind of operation and the length and number of divisions determine
the cutoff point for augmentation and the assignment of an additional
TRB.
b. The transportation railway group (TRG), a supervisory and
administrative unit, is normally the senior TRS organization in
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