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

Large blank mall building with only two cars in large parking lot.

Pennsylvania Mall Conversion Bill Passes House

If passed, the bill would promote the adaptive reuse of defunct commercial buildings.

April 18, 2024 - Central Penn Business Journal

Street scene in Greenwich Village, New York City with people walking through busy intersection and new WTC tower in background.

Planning for Accessibility: Proximity is More Important than Mobility

Accessibility-based planning minimizes the distance that people must travel to reach desired services and activities. Measured this way, increased density can provide more total benefits than increased speeds.

April 14, 2024 - Todd Litman

Rendering of wildlife crossing over 101 freeway in Los Angeles County.

World's Largest Wildlife Overpass In the Works in Los Angeles County

Caltrans will soon close half of the 101 Freeway in order to continue construction of the Wallis Annenberg Wildlife Crossing near Agoura Hills in Los Angeles County.

April 15, 2024 - LAist

View of downtown Seattle with Space Needle and mountains in background

Eviction Looms for Low-Income Tenants as Rent Debt Rises

Nonprofit housing operators across the country face almost $10 billion in rent debt.

5 hours ago - The Seattle Times

Rendering of Brightline West train passing through Southern California desert

Brightline West Breaks Ground

The high-speed rail line will link Las Vegas and the Los Angeles area.

6 hours ago - KTLA

Aerial view of gold state capitol dome in Denver, Colorado and Denver skyline.

Colorado Bans No-Fault Evictions

In most cases, landlords must provide a just cause for evicting tenants.

7 hours ago - Colorado Politics

News from HUD User

HUD's Office of Policy Development and Research

Call for Speakers

Mpact Transit + Community

New Updates on PD&R Edge

HUD's Office of Policy Development and Research

Urban Design for Planners 1: Software Tools

This six-course series explores essential urban design concepts using open source software and equips planners with the tools they need to participate fully in the urban design process.

Planning for Universal Design

Learn the tools for implementing Universal Design in planning regulations.