Safety study :
highway work zone safety.

Description

Corporate Author: United States. National Transportation Safety Board.
Language(s): English
Published: Washington, D.C. : National Transportation Safety Board, [1992]
Subjects: Traffic signs and signals.
Roads > Roads / United States > Roads / United States / Maintenance and repair > Roads / United States / Maintenance and repair / Safety measures.
Note: "Notation 5734."
"Adopted: May 12, 1992."
Physical Description: vi, 77 p. : ill. ; 28 cm.
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Item Link	Original Source
Full view	University of California