Arrow panel and portable changeable message sign requirements /

Bibliographic Details
Corporate Authors:	Texas. Department of Transportation, Texas Transportation Institute
Other Authors:	Wooldridge, Mark Douglas, 1960-
Format:	Government Document Book
Language:	English
Published:	[College Station, Tex.] : Texas Transportation Institute, Texas A & M University System, [2002]
Series:	Research report (Austin, Tex.) ; 4940-S.
Subjects:	Traffic signs and signals. Visibility. Photometry. Roads > Texas > Maintenance and repair > Safety measures.

Published 2001

Book