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Director's Office
Municipal Plaza Building
114 W. Commerce
San Antonio, Texas 78205
Main Line: (210) 207-8022
Fax: (210) 207-4406

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Left Turn Signal

What are the benefits?
Research on the use of FYA left-turn signals has shown to improve intersection safety by giving drivers better understood directions while allowing traffic engineers to operate traffic signals in the most efficient manner. A comprehensive seven year study completed by the National Cooperative Highway Research Program (NCHRP) on behalf of the Federal Highway Administration, found that drivers made fewer mistakes with the new FYA signals than with traditional left turn signals.

Where will they be used?
The flashing yellow arrow left-turn signal has been installed at several intersections throughout the City of San Antonio. Installation of the flashing yellow arrow will continue to be implemented at existing and new traffic signal locations city wide.
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