An Argument for Eliminating Traffic Lights

For far different reasons, uncontrolled intersections are proliferating in Northern Europe and Southeast Asia. But how can they be safe? Matthew Yglesias uses a video of such an intersection in Siem Reap, Cambodia to prove their functionality.

1 minute read

November 15, 2013, 1:00 PM PST

By Jonathan Nettler @nettsj


Traffic Lights

Horia Varlan / flickr

"Something I find fascinating is the possibly misguided nature of the assumption that heavy street traffic necessitates the use of traffic lights and stop signs," writes Yglesias. "The theory is that controlled intersections are faster and safer." But cogent arguments and real-world experience offer a different perspective. 

So how does an uncontrolled intersection work? "The key thing is that basically everyone drives slowly and steadily rather than in a stop-and-go manner," explains Yglesias.

"Stop-and-go turns out to be less a way of increasing safety than a way of maximizing the value of vehicles with high top speeds (i.e., automobiles) rather than slower vehicles (bicycles, scooters, motorcycles). So filling your city with signalized intersections turns out to be a kind of backdoor subsidy to automobile ownership."

Thursday, November 14, 2013 in Slate

portrait of professional woman

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 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 Planner

Get top-rated, practical training

Historic homes in St. Augustine, Florida.

Florida Considers Legalizing ADUs

Current state law allows — but doesn’t require — cities to permit accessory dwelling units in single-family residential neighborhoods.

March 18, 2025 - Newsweek

Aerial view of suburban housing near Las Vegas, Nevada.

HUD Announces Plan to Build Housing on Public Lands

The agency will identify federally owned parcels appropriate for housing development and streamline the regulatory process to lease or transfer land to housing authorities and nonprofit developers.

March 17, 2025 - The Wall Street Journal

Close-up of traffic congestion from behind cars on a freeway in the San Francisco Bay Area.

Conservatives’ Decongestion Pricing Flip-Flop

When it comes to solving traffic problems, the current federal administration is on track for failure, waste, and hypocrisy.

March 17, 2025 - Todd Litman

Herd of cows standing in front of wind turbine in grassy field in Texas.

Renewable Energy Overtakes Coal for First Time

Solar and wind power generated close to a third of U.S. electricity supplies in 2024.

45 minutes ago - Governing

Man wearing black bike helmet changing battery on black e-bike outdoors.

Pilot Project Offers E-Bike Rebates in New York State

The program will start in the Village of Ossining with plans to expand in the greater Hudson River region.

1 hour ago - River Journal

Lava visible in crater with steam coming out in Hawaii.

Can Geothermal Energy Fuel Hawaiʻi’s Future?

Gavin Murphy, a New Zealand-based consultant with experience in indigenous-led geothermal projects, argues that Hawaiʻi is poised to achieve energy independence and economic growth by respectfully developing its untapped geothermal resources.

March 24 - Honolulu Civil Beat