Photometric requirements for portable changeable message signs /

Bibliographic Details
Corporate Authors:	Texas. Department of Transportation, Texas Transportation Institute
Other Authors:	Finley, Melisa D.
Format:	Book
Language:	English
Published:	College Station, Tex. : [Springfield, Va.] : Texas Transportation Institute, Texas A & M University System ; [Available through the National Technical Information Service], [2001]
Series:	Research report (Austin, Tex.) ; 4940-2.
Subjects:	Traffic signs and signals. Visibility. Photometry. Roads > Texas > Maintenance and repair > Safety measures. Flashing traffic signals. variable message signs. Changeable message signs > dynamic message signs

Description
Item Description:	"September 2001."
Physical Description:	x, 30 pages : illustrations ; 28 cm.
Bibliography:	Includes bibliographical references (page 25).