All-red signal intervals in San Francisco
Subtitle: a progress report.
Contributors: San Francisco (Calif.). Dept. of Parking and Traffic.
Publisher: San Francisco Dept. of Parking and Traffic
Published: 2001
Place of publication: [San Francisco, CA
Language: eng
Subjects: Electronic traffic controls; Traffic signs and signals
Notes: Cover title.

"May 1, 2001."

Includes bibliographical references.