Conroy yard destined to Cain are marked RK, and cars for Maxey yard
and the Sands River Division are marked AY. Cars destined to points
beyond Dewitt and Bellevue are DW or BV freight because these areas
represent the last groups for which Conroy is responsible for
2.6. ADVANCE GROUPING
Usually, freight arriving or originating in Conroy should be
switched according to destinations from Conroy to Maxey only.
freight destined for points on or beyond either fork of the Y would
be AY freight and forwarded by Conroy to Maxey yard in a mixed state.
A mixed freight train is one that has not been built up in station
order; also, it is one that contains both passenger and freight cars.
Or it is possible that Conroy yard might have, apart from detailed
grouping on the Elwood Division, only three other groups: north
route, south route, and AY. However, assume that the yard facilities
at Maxey are somewhat limited, while Conroy yard is a large
consolidated terminal having receiving, classification, and departure
yards, as shown back in figure 1.1, and a large work force.
would, therefore, be more economical to classify at Conroy yard all
freight from Maxey to Bellevue and from Maxey to Dewitt.
several subgroups may exist within each of the eight divisions on the
north and south routes of the typical grouping area in figure 2.1, no
attempt is made at Conroy for detailed classification within the
The following subparagraphs further discuss the grouping of
six typical trains.
a. The lineup or standing, which is simply the arrangement of the
blocks or cuts of cars between engine and caboose, of six typical
trains out of Conroy yard might be as follows: