March 27, 2013, 5am PDT
Washington D.C. holds the dubious distinction as the nation's most congested city. As D.C. seeks ways to reduce its traffic, Arlington County, in suburban Virginia, has made great strides in convincing commuters to ditch their cars.
March 25, 2013, 6am PDT
Faced with paralyzing gridlock, North America's fourth-largest city is studying several potential solutions for easing congestion - including traffic lights that think for themselves.
March 18, 2013, 8am PDT
Rather than the doomsday scenarios envisioned by critics, recent results indicate that closing streets to cars can have a demonstrable effect in improving circulation.
February 28, 2013, 5am PST
Eric Jaffe reports on research that may give pause to light rail advocates who argue the mode can reduce congestion: ridership gains along new lines may come at the expense of buses, rather than cars.
February 3, 2013, 7am PST
Cities such as Dallas, Denver, Sacramento and Tampa are reversing course on their one-way streets for a number of reasons; but improving traffic flow likely isn't one of them. Eric Jaffe looks at a recent study that upends conventional wisdom.
December 18, 2012, 1pm PST
In his latest entry in KCET's "Laws That Shaped LA" Series, Jeremy Rosenberg looks at the impact that the Functional Classification system has had on the urban form of Los Angeles and cities throughout the country since its adoption in 1973.
December 1, 2012, 5am PST
Matt Chaban reports on the making of “the Upper East Side’s very own High Line." Current proposals seek not only to "re-pedestrianize" Park Avenue, but also to restore some of its turn of the century glory.
August 2, 2012, 3pm PDT
For decades, the Functional Classification System, and its emphasis on accommodating vehicle movement, has been the basis by which urban streets in America have been designed and engineered
June 15, 2012, 9am PDT
A new report from the Urban Land Institute concludes that Boston's subways could become overwhelmed by widespread congestion by the end of the decade without investment in more subway cars, better power and signal systems, reports Eric Moskowitz.
June 3, 2012, 11am PDT
No one wants to be stuck in traffic. But next time you find yourself pounding the steering wheel out of frustration just think about Eric Dumbaugh's findings regarding the connection between congestion and economic productivity.
June 1, 2012, 8am PDT
In the face of New York City's increasing assault on automobiles, Justin Davidson stands up for the pleasures and utility of driving as a key ingredient in the city's multimodal mix of mobility.
February 8, 2012, 1pm PST
Gary Toth considers the damage to the quality of our streets and urban environments caused by the use of travel projection models and Levels of Service (LOS) as performance metrics.
Project For Public Spaces
February 2, 2012, 8am PST
According to the Ridesharing Institute, filling out cars with more passengers may be the cheapest, simplest way to ease congestion, reports Emily Badger. However novel strategies must be introduced to overcome the broad decline in carpooling.
December 27, 2011, 11am PST
New legislation by the Maharashtra State Governments would allow private land owners to apply for city boundary expansions as a tool to ease congestion.
December 13, 2011, 12pm PST
In San Francisco, a performance parking pilot program has not had as big an impact as many thought it would. According to Michael Perkins, "Even with high rates, popular blocks still fill up, and other blocks remain under-filled even at low prices."
Greater Greater Washington
December 12, 2011, 10am PST
With pollution levels becoming dangerous in Rome, Italy, the government is taking a hard line on driving. In late November, only cars with even-numbered license plates were allowed to drive in the city, with odd plates the next.
October 12, 2011, 9am PDT
On July 1, 85,000 hybrid vehicles in CA bearing clean-air stickers lost the privilege to drive solo in the carpool lane. UC Berkeley researchers show how that exclusion slowed speeds in the HOV lane while increasing congestion in the adjacent lanes.
October 7, 2011, 7am PDT
The Texas Transportation Institute (TTI) released its 2011 Urban Mobility Report, which shows how many additional hours in traffic each commuter would be subject to if public transportation were discontinued.
October 4, 2011, 1pm PDT
In a recent post, Todd Litman criticized the Texas Transportation Institute's Urban Mobility Report. In this post, I'd like to do something a little different: assume that TTI's congestion estimates are more or less reliable, and try to learn something from them. So here are a few observations:
September 28, 2011, 9am PDT
Joe Peach compares the approach to mollifying congestion in five world cities, with contrasting results.