San Francisco’s 33 speed cameras pass state review as 10-mph-plus speeding drops 84%

Under the state law, any camera location that fails to reduce 85th-percentile speeds, cut 10-mph-plus speeding by at least 20%, or reduce repeat offenses by 20% must be removed unless physical traffic calming is added. SFMTA’s 28-page evaluation shows all 33 locations met at least one statutory threshold. [1][2]

Across the 31 corridors with before-and-after pneumatic tube or radar volume counts, vehicles exceeding the limit by 10 mph or more fell from 50,752 per day in Winter 2024–25 (10% of total traffic) to 7,458 per day in May 2026 (1.6% of total traffic)—an 84% reduction in speeding share. Two additional corridors evaluated by engineering speed surveys recorded 85th-percentile drops of 14% and 12%. Roughly 62.9% of cited drivers did not receive a second notice. [2]

First-year citation revenue through July 2026 totaled $6.5 million against $4.3 million in startup and operating costs, leaving $2.2 million restricted by law to residential speed humps and flashing crosswalk beacons within three years. Because the report measures corridor speeds rather than multi-year injury crashes, its data show behavioral change at monitored streets rather than a citywide collision census. [1][2][3]