March 13, 2017, 12pm PDT
The networked sensors and signals in Ann Arbor give the city a coordinated way to respond to traffic.
December 22, 2016, 11am PST
Was the I-405 widening project worth it for Los Angeles? Depends on whom you ask.
November 10, 2016, 11am PST
Seattle is set to build a nine-lane tunnel on its waterfront, the Urbanist's Ryan Packer is disappointed with its design and the project's stated goals.
October 13, 2016, 5am PDT
London Mayor, Sidiq Kahn, authorizes two new bridges and a tunnel in eastern part of the city.
September 29, 2016, 10am PDT
Streetsblog slams Caltrans for wasting $1.9 billion on futile freeway widening projects.
May 23, 2016, 10am PDT
The $1.5 billion, 6.6-mile light rail extension from Culver City to Santa Monica is projected to double trips on the line by 2030, giving commuters a viable alternative to driving. Just the same, don't expect the extension to reduce congestion.
April 18, 2016, 9am PDT
An experiment in Irving on SH 161 is defying the rules of induced demand, but not by building new lanes.
January 25, 2016, 6am PST
Pitched as a necessary addition to reduce congestion on interstates 30 and 35E as they pass Downtown Dallas, the Trinity Parkway is likely to induce one million additional vehicle miles traveled a day.
October 10, 2015, 9am PDT
Connecticut Governor Dan Malloy sees potential benefits in economic development and congestion reduction in a pair of highway widening proposals in his state.
September 29, 2015, 2pm PDT
Thinking about congestion as an economic problem generates new solutions for the problem as well as a response to accusations of social engineering.
August 23, 2015, 5am PDT
At some point, in places all over the country, freeways stopped working as they were intended. What can be done to improve one of the great frustrations of life with a car?
December 6, 2014, 7am PST
Aaron Renn provides a dissenting argument on the implications of peak car, namely, "if we’ve really reached peak car, maybe we really can build our way out of congestion after all."
June 18, 2014, 12pm PDT
In case you need an easy link to reference when encountering arguments in favor of widening roads and freeways as a solution for traffic, Adam Mann provides an accessible and clear explainer article that sums up the limitations of such strategies.
June 25, 2012, 9am PDT
Despite many studies confirming the effect of induced traffic, the effect is often ignored in the transport models used for project appraisal, says a team of Scandanavian researchers creating an extreme bias in the assessment of new projects.
European Journal of Transport and Infrastructure Research
June 7, 2011, 7am PDT
Eric Jaffe at The Infrastructurist explains the non-intuitive reason why often removing freeways means less traffic.
September 5, 2010, 7am PDT
Dan Bertolet argues that adding expanding car capacity in cities just inspires more people to drive and ruins the qualities that make the city attractive in the first place.