Skip to Content
Streetsblog California home
Streetsblog California home
Log In
"Safe Streets"

Legislative Update: Long-awaited Speed Limit Flexibility Bill Moves Forward

Note: GJEL Accident Attorneys regularly sponsors coverage on Streetsblog San Francisco and Streetsblog California. Unless noted in the story, GJEL Accident Attorneys is not consulted for the content or editorial direction of the sponsored content.

Under current rules, California cities have very limited say in the speed limit on their streets. Municipalities have to base it on how fast people currently drive, regardless of whether most of them are speeding or not. It's known as the "85th percentile rule" because planners must set the speed limit at whatever speed the 85th driver is going.

It has caused a lot of problems, among them steadily increasing speed limits over time.

These rules are not based on science, nor on safety. Professor Brian Taylor, director of UCLA's Institute of Transportation Studies, says the rule was created in the 1930s as a starting point, meant to be revisited when more evidence and experience would be available to help formulate a better method. Instead, it became a hard and fast rule, he told the Assembly Transportation Committee during its hearing on Assemblymember Laura Friedman's bill, A.B. 43.

That bill is a first step towards changing this wackadoodle method. It passed the committee on a 15-0 vote, with no spoken opposition.

This is in sharp contrast to three years ago, when Friedman first brought a bill on the topic to this committee. Opposition from law enforcement and car clubs was stiff, and then-chair Assemblymember Jim Frazier (D-Oakley) pushed instead for a task force on the topic.

That turned out to be a good thing, said Friedman. "We convened a task force with stakeholders from all across California. We had representatives from AAA, from law enforcement, from safe streets advocates, from rural and urban areas. And what we discovered was that cities all over the state have for years been asking for some flexibility on setting speed limits."

The task force recommended that the state change the way it sets speed limits.

A.B. 43 keeps a narrow focus. "It doesn't get rid of the 85th percentile rule," said Assemblymember Friedman. "It takes a balanced approach." It gives local authorities more choices when it comes to setting limits, including allowing them to apply similar rules used for setting speed limits around schools in business districts. It would also require them to consider other factors besides a speed survey - such as pedestrian and bicycle safety, particularly the safety of vulnerable pedestrians.

Assemblymember Friedman said that last year, during the pandemic, the U.S. saw a thirteen percent drop in miles driven, but a 24 percent increase in its per-mile death rate. "That's the highest increase in 96 years," she said.

She does not claim that being able to set lower speed limits will magically make streets safer. "This is just one piece of the traffic safety puzzle," she said, "but a very important piece."

The bill has a long list of supporters, including the cities of Sacramento, Los Angeles, and San Jose, the Southern California Association of Governments, the Metropolitan Transportation Commission, San Francisco Municipal Transportation Agency, Walk SF, AARP, and others. Committee members warmly commended Assemblymember Friedman for her work on the bill.

Follow Streetsblog California on Twitter @StreetsblogCal

Stay in touch

Sign up for our free newsletter

More from Streetsblog California

StreetSmart 14.2 – The Governor’s Race and High Speed Rail

Yesterday was the legislature. Today is the Governor's Race and High-Speed Rail.

March 5, 2026

Thursday’s Headlines

While it's certainly good news that a dangerous intersection is being fixed, how did it take so long for something called "Friante Roulette" to be prioritized?

March 5, 2026

Talking Headways Podcast: The Annual Prediction Show with Yonah Freemark

Yonah Freemark joins Talking Headways for their annual discussion of future of transit in the United States (and Mexico).

March 5, 2026

Study: AVs Will Super-Charge VMT

Yes, robocars address many of our traffic violence troubles, but they may fail to uproot the deeper rot of car dependency that has hollowed out our society.

March 4, 2026

As Bike Cars Overflow, Caltrain Bans Large Bikes and Panniers

New rules heavily restrict the types of bikes Caltrain users can bring on board. Years ago advocates warned Caltrain that they weren't allotting enough bike space on the new trains.

March 4, 2026
See all posts