How Seattle Commuters Outwitted the Clog That Wasn't

Seattle's free-flowing experience with more than two weeks of freeway lane closures -- predicted to be traffic Armageddon -- shows that the conventional wisdom about traffic isn't always right.

1 minute read

September 3, 2007, 5:00 AM PDT

By Nate Berg


In a Seattle Times op-ed published today, Sightline Institute's Clark Williams-Derry opines on what the great Seattle Clog that Wasn't can teach us about transportation.

Listening to the news stories beforehand, it was supposed to be an absolute nightmare, with predictions of traffic Armageddon. Then, on the first Monday of the closures, Aug. 10, the commute came and no disaster happened. "Drivers heeded the warnings, and many stayed out of their cars, finding other ways to get to work. In fact, not only was there no traffic disaster, it was, in the words of one commenter on The Seattle Times traffic blog, 'The best commute ever.'"

The main lesson is that traffic is more flexible than we think, which may teach us something about other national and local transportation debates. For example, the amount of northbound traffic diverted from I-5 was just about equal to the volumes that enter the Alaskan Way Viaduct every day from south of the West Seattle on-ramp.

The two cases aren't exactly parallel, but "the fact that the existing transportation system sufficed to forestall a disaster should give us more confidence that, with modest improvements in transit and traffic flow, the region's commuters can find workable commuting solutions without the massive costs and neighborhood disruption of rebuilding the viaduct."

Thanks to Elisa Murray

Thursday, August 30, 2007 in The Seattle Times

courses user

As someone new to the planning field, Planetizen has been the perfect host guiding me into planning and our complex modern challenges. Corey D, Transportation Planner

As someone new to the planning field, Planetizen has been the perfect host guiding me into planning and our complex modern challenges.

Corey D, Transportation Planner

Ready to give your planning career a boost?

MARTA train tracks run in the middle of a six lane highway with an overpass and the Buckhead city skyline of skyscrapers in the background.

How Would Project 2025 Affect America’s Transportation System?

Long story short, it would — and not in a good way.

September 29, 2024 - Marcelo Remond

Aerial view of low-rise neighborhood in Los Angeles, California.

California Law Ends Road Widening Mandates

Housing developers will no longer be required to dedicate land to roadway widening, which could significantly reduce the cost of construction and support more housing units.

September 25, 2024 - Streetsblog California

People in large plaza in front of Zurich Opera House in Switzerland.

But... Europe

European cities and nations tend to have less violent crime than the United States. Is government social welfare spending the magic bullet that explains this difference?

September 26, 2024 - Michael Lewyn

Desert tortoise on asphalt road.

California Room to Roam Act Prioritizes Wildlife Connectivity

A new state law requires new development and infrastructure to minimize disruption to local wildlife habitats and migration patterns.

October 4 - Center for Biological Diversity

Victorian Flavel House mansion in Astoria, Oregon.

Oregon Releases Historic Preservation Plan for Next Decade

A plan from the state’s State Historic Preservation Commission outlines priorities for preserving Oregon’s cultural and historic resources.

October 4 - KTVZ

Rendering of Interstate 35 cap park over sunken freeway in Austin, Texas.

Austin’s Vision for I-35 Cap Parks Takes Final Shape

The city’s plan includes parks, entertainment pavilions, commercial space, sports fields, and other facilities over 30 acres of deck parks spanning a sunken Interstate 35.

October 4 - KUT

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.

New Updates on PD&R Edge

HUDs Office of Policy Development and Research

Regional Rail at Mpact Transit + Community 2024

Mpact (formerly Rail~Volution)

Cornell's Department of City and Regional Planning Announces Undergraduate and Graduate Program Information Sessions and Application Details

Cornell University's College of Architecture, Art, and Planning (AAP), the Department of City and Regional Planning (CRP)