Cover image for Overhead guide sign visibility factors.
Overhead guide sign visibility factors.
Title:
Overhead guide sign visibility factors.
Author:
Stein, A. C.
Publication Information:
McLean, Va. : Research, Development, and Technology, Turner-Fairbank Highway Research Center ; Springfield, VA : Available through the National Technical Information Service, [1989]
Physical Description:
2 v. : ill. ; 28 cm.
General Note:
Cover title.

"Authors: A.C. Stein ... [et al.]. Performing organization: Systems Technology, Inc."--Technical rept. documentation p.

"May 1989."

FHWA-RD-88-197.
Contents:
v. 1. Final report -- v. 2. Appendices.
Added Author:
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