San Diego to Lower Speed Limits on 20% of its Streets

The city council approved reduced speed limits on streets designated as high-risk corridors, school zones, and other areas as part of its Vision Zero strategy.

2 minute read

March 19, 2026, 8:00 AM PDT

By Diana Ionescu @aworkoffiction


Neon sign over street for historic Gaslamp Quarter district of San Diego, CA at dusk.

A new state law gives cities more flexibility in reducing speed limits on city-owned streets. | Sandra Foyt / Shutterstock

The San Diego City Council approved a resolution that will lower speed limits on around 20 percent of the city’s streets as part of its Comprehensive Speed Management Plan, reports Joey Safchik for NBC 7 San Diego. 

According to the city, the effort uses a “data-driven, city-wide approach to lower speed limits across San Diego's neighborhoods, commercial corridors, and school zones” to align speed limits with Vision Zero goals.

The initiative follows new state laws that give cities more flexibility in determining speed limits in certain areas. “Corridors with higher comparative fatal or serious injury crashes can see 5 mph reductions, as can areas with high pedestrian and bicyclist activity. Business districts can be reduced to 25 or 20 mph and school zones can reduce speeds to 15 mph or 20 mph within 500 feet of schools, and 25 mph between 501 and 1,000 feet on qualifying nearby approach streets, the city statement read.”

Based on the new regulations, San Diego found that over one-fifth of its roads, or 679.1 miles, could have their speed limits reduced based on their status as crash-heavy corridors, pedestrian and bike activity corridors, business activity districts, or school zones.

According to Safchik, “The plan could go into effect next fiscal year, depending on funding through the city's annual budget process. Implementation is expected to cost about $2 million, mainly to update signage across the city.”

Tuesday, March 17, 2026 in NBC 7 San Diego

Young Professional

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching. Mary G., Urban and Environmental Planner

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching.

Mary G., Urban and Environmental Planner

Get top-rated, practical training for planners

"Planetizen federal action tracker" logo superimposed over black and white image of US Capitol dome.

Planetizen Federal Action Tracker

A weekly monitor of how Trump’s orders and actions are impacting planners and planning in America.

43 minutes ago - Zachary Whalen

Overlapping highways

The state-sanctioned urbicide of Austin

People don’t kill cities. Freeways do.

September 8, 2026 - Benjamin Schneider

The Hoover Dam blocking the Colorado River. The river's water level is noticeably low. The cliffs surrounding the blue water are brown and jagged.

US to reduce Colorado River water deliveries to Mexico

A new Colorado Treaty amendment reduces Mexico’s Colorado River water allocation by 250,000 acre feet.

September 11, 2026 - The Arizona Republic

NYC Mayor Zohran Mandami speaks behind a blue podium.

Mamdani overhauls NYC's Vision Zero plan with 100 new policy goals

The overhaul aims to reduce traffic deaths and make streets safer for pedestrians, cyclists and drivers through lower speed limits, new safety infrastructure and more.

30 minutes ago - ABC 7 Eyewitness News

A New Jersey train approaches people waiting at the station.

Amtrak not solely to blame for New Jersey commuter rail's unreliability, report finds

A new study from the Garden State Initiative found that NJ Transit’s budget grew 20% across a 4 year period, but reliability declined significantly over the same period.

September 15 - Mass Transit

A tall, gray power plant billows smoke into a blue sky.

EPA erases limits on planet-warming pollution from power plants

Under Monday’s plan, power plants would still have some limits on how much mercury, arsenic and other contaminants they can emit.

September 15 - New York Times

FREE Course: Walkable City 1: Why Walkability?

After describing his path towards focusing on walkability as the essence of good planning, Jeff Speck marches through his five principal reasons for making more walkable places.

Reinventing Malls: Planning Alchemy—Turning Gray Fields Into Gold

The course focuses on the opportunities and imperatives that shape reinvention of mall sites.