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Blue Flag

Railroad DictionaryRailroad Dictionary
A blue flag or signal that is placed on a car or locomotive when workers are around or under it. When a car or locomotive is blue-flagged, then it must not be coupled to or moved in any manner. The only person allowed to remove a blue flag is the person who put it there in the first place.

 

Railroad Dictionary INDEX:

List of Terms: Terms beginning with "A", Page 1

Starts With:      A B C D E F G H I J K L M N O P R S T U V W Y 1
Page Number:      1

A: Page 1 of 1.

AAR
AB Valve
ABD Valve
ABDW Valve
Absolute Block
Absolute Permissi...
Absolute Signal
Add
Adhesion Coeffici...
AEI Tag
Air Brake System
Air Test
Alley
Angle Cock
APE
Application
Approach Signal
Armed
Articulated [Mall...ARU
Automatic Block S...
Automatic Brakes
Automatic Cab Sig...Automatic Stop Arm
Automatic Train S...Auxiliary Reservo...

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