Diagrammatic guide signs for use on controlled access highways
Subtitle: Traffic engineering evaluation of diagrammatic guide signs : The I-495 (Capital Beltway)/I-70S field study
By: G.S. Kolsrud
Contributors: United States. Federal Highway Administration. Traffic Systems Division; Biotechnology, inc
Publisher: Federal Highway Administration
Published: 1972
Place of publication: Washington, D.C
Language: eng
Subjects: Traffic signs and signals
Other titles: Traffic engineering evaluation of diagrammatic guide signs; The I-495 (Capital Beltway)/I-70S field study
Notes: "December 1972."

Includes bibliographical references.

Final report. Aug. 1971-Dec. 1972.

Performed by BioTechnology, Inc., sponsored by U.S. Federal Highway Administration, Traffic Systems Division under contract no. DOT-FH-11-7815. work unit no. FCP 31N2784