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When emergency repair work is to be done under or about cars
in a train and a blue signal is not available, the engine men
will be notified and protection must be given those engaged in
making repairs.
The GCOR, at least the 1989 edition, goes into more detail and
defines when the signal is to be applied. The signal must be
placed when workers are on, under or between equipment and
subject to personal injury if the equipment is moved. However,
train and yard crews are excluded, “except when assigned to per-
form such work on railroad rolling equipment that is not part of
the train or yard movement they are handling or will handle.”
The GCOR goes on to say: “NOTE: Servicing does not include
supplying cabooses, engines or passenger cars with items such
as ice, drinking water, tools, sanitary supplies, stationery or
flagging equipment.”
3
3. A “blue flag” can
be a signboard, cloth
flag, or a light, but it is
always used to protect
workers on railroad
equipment.
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