San Diego Lowers Speed Limits on 20% of City Streets

City Council unanimously approves data-driven plan to improve traffic safety and meet Vision Zero goals.

Mar. 17, 2026 at 4:11am

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The San Diego City Council has unanimously passed a resolution to lower speed limits on roughly 20% of the city's streets, as part of its "Vision Zero" initiative to eliminate traffic fatalities and serious injuries. The Comprehensive Speed Management Plan will use a data-driven approach to identify corridors with higher safety risks, such as school zones and areas with heavy pedestrian and bicycle traffic, and reduce speeds accordingly.

Why it matters

This move by San Diego is a significant step in aligning the city's speed limits with its Vision Zero safety priorities. Lowering speeds, especially in high-risk areas, can dramatically reduce the severity of crashes and save lives. The plan also gives the city more flexibility to set appropriate speed limits, rather than defaulting to the state-mandated 25 mph on many roads.

The details

The city found that over 20% of its 3,185 centerline miles of roads - or 679.1 miles - are eligible for slower speed limits under the new plan. This includes 189.6 miles of crash-heavy safety corridors, 32.6 miles of high pedestrian and bicyclist activity areas, 58.7 miles of business districts, and 398.2 miles of school zones and school approach streets. The plan will cost an estimated $2 million to implement, primarily for updated signage.

  • The City Council unanimously passed the resolution on March 17, 2026.
  • The Comprehensive Speed Management Plan could go into effect as soon as the next fiscal year, pending funding through the city's annual budget process.

The players

San Diego City Council

The governing body of the City of San Diego that unanimously approved the speed limit reduction plan as part of the city's Vision Zero initiative.

Stephen Whitburn

Councilman and Chair of the Active Transportation and Infrastructure Committee, who stated that the vote shows the city's commitment to safer streets for residents.

Margaret McCormick

Interim Assistant Director of the San Diego Transportation Department, who said the plan represents a significant step in aligning the city's speed limits with Vision Zero safety priorities.

Aria Grossman

Representative from Circulate San Diego, who noted that even small speed reductions can make a big difference in crash outcomes.

Mary Elliot

Member of Families for Safe Streets San Diego who lost her husband in a biking accident, and supports the speed limit changes to save lives.

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What they’re saying

“Across San Diego, residents consistently tell us they want safer streets in their neighborhoods. Today's unanimous vote shows that we share that commitment. By aligning our speed limits with safety data and Vision Zero goals, we're taking an important step toward protecting lives.”

— Stephen Whitburn, Councilman and Committee Chair (nbcsandiego.com)

“The Comprehensive Speed Management Plan represents a significant step in aligning San Diego's speed limits with Vision Zero safety priorities. The city has a clear and consistent framework to reduce speeds where they will make the most safety impact for all road users.”

— Margaret McCormick, Interim Assistant Director, San Diego Transportation Department (nbcsandiego.com)

“Even 5, 10 miles per hour and reduced speed when a crash occurs can be the difference between walking away or dying. Speed limits definitely are not, you know, the one solution to fix all the problems that we're seeing on our roads, but it's definitely a good first start.”

— Aria Grossman, Representative, Circulate San Diego (nbcsandiego.com)

“Those small increments can make a huge difference in saving someone's life. I want to honor my husband for one thing, so it's anything I can do to support this and save lives is just, you know, it's so important.”

— Mary Elliot, Member, Families for Safe Streets San Diego (nbcsandiego.com)

What’s next

The plan could go into effect as soon as the next fiscal year, pending funding through the city's annual budget process. Implementation is expected to cost about $2 million, mainly to update signage across the city.

The takeaway

San Diego's comprehensive speed management plan represents a significant step forward in the city's Vision Zero initiative to eliminate traffic fatalities and serious injuries. By aligning speed limits with safety data and high-risk areas, the city is taking a proactive approach to improving road safety for all users, from pedestrians and cyclists to drivers.