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Guidelines for the specification of blue safety flags in railroad operations

Main Author: Hannon, Donald J.
Corporate Authors: United States. Federal Railroad Administration. Office of Railroad Policy and Development., John A. Volpe National Transportation Systems Center (U.S.)
Format: Government Document Online Book
Language:English
Published: Washington, DC : U.S. Dept. of Transportation, Federal Railroad Administration, Office of Railroad Policy and Development, [2010]
Series:Human factors in railroad operations.
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Online Access:ONLINE VERSION
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