Guidelines for the effective operation and control of VDOT permanent variable message sign and highway advisory radio units
Subtitle: state of the practice and recommendations : technical assistance report
By: John S. Miller.
Contributors: Virginia Transportation Research Council.
Series: VTRC ;; 96-TAR4; VTRC (Series) ;; 96-TAR4.
Publisher: Virginia Transportation Research Council
Published: 1996
Place of publication: Charlottesville, Va
Language: eng
Number of pages: 35
Subjects: Highway communications -- Virginia.; Radio -- Virginia.; Traffic signs and signals -- Virginia.
Notes: Includes bibliographical references (p. 29-31).
"June 1996."