Studies Repeatedly Show Traffic Cameras Save Lives

Although divisive, speed and red-light cameras significantly improve road safety, but many U.S. jurisdictions remain resistant.

1 minute read

July 31, 2025, 11:00 AM PDT

By Diana Ionescu @aworkoffiction


White box with traffic camera at stoplight with green freeway signs for Northern California towns visible in background.

Tony Webster from Minneapolis, Minnesota, United States, CC BY-SA 2.0, via Wikimedia Commons / Wikimedia Commons

Traffic cameras are extremely divisive, with critics calling them a cash grab or raising equity concerns. However, Alan Ehrenhalt notes in Governing, the evidence shows that speed and red-light cameras save lives.

“When you reduce the number of police traffic stops for speeding or red-light running, the number of accidents goes up. When you install cameras to catch the offenders, the number goes down,” Ehrenhalt explains. “One recent study estimated that traffic cameras along one particularly dangerous roadway in Philadelphia prevented as many as 20 crashes per month and up to 1.4 monthly deaths.” Speeding infractions on that roa dropped by 90 percent after the cameras were installed. Other studies show similarly encouraging results.

According to the article, 22 states and Washington, D.C. have red-light cameras, and 24 use them to catch speeding violations. On the other end of the spectrum, 10 states ban traffic cameras altogether.

Ultimately, Ehrenhalt concludes, “when you add it all up, saving lives is more important than traffic tickets.” While traffic cameras may sometimes issue tickets drivers find unfair, their benefits in increased road safety far outweigh that cost.

Wednesday, July 30, 2025 in Governing

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

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

Skyscrapers in Jersey City.

New Jersey’s second-largest city bans standalone data centers

Jersey City will continue to allow co-location facilities, such as those meant for research institutions that store their own data.

September 4, 2026 - The Cool Down

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

A white RAPID bus. The lower half is light blue, and says RAPID in purple text. The bus is half visible, appearing from the left side of the image.

Phoenix announces new on-demand transit service, more frequent RAPID buses

Both new services will launch in October, and are part of Phoenix's Project Effective Access Solutions for Easing Congestion.

September 15 - KJZZ

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.