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congestion

The next roundabout?

Posted on August 8, 2011

A new intersection design is being introduced at high volume highway interchanges in states across the U.S. The diverging diamond interchange (simulation), described by Tom Vanderbilt in a recent Slate article, reduces queue lengths and …

Posted in NewsTagged congestion, diverging diamond, interchanges, safety

More roads, more traffic, really dreary news.

Posted on June 6, 2011

Many analyses of road network expansion and congestion have challenged the notion that increasing highway capacity relieves traffic. A recent study of American cities emphasizes that you can’t build your way out of congestion. The …

Posted in NewsTagged capacity, congestion, congestion pricing, expansion, transit

California dreaming of better prognostications

Posted on May 23, 2011

Time, money and gas are wasted in traffic jams. Citing figures of 28 gallons of gas and $808 lost each year because of traffic, a new project to develop ways to avoid these losses was …

Posted in NewsTagged CA, congestion, traffic

Avoiding traffic jams

Posted on May 2, 2011

Going beyond smart parking meters, a software application looks at your personal travel patterns over a period of time and makes predictions about the best way to get to where you are going. “According to …

Posted in NewsTagged apps, congestion, multimodal, technology, traffic

Road pricing: Guidelines for analysis and for communication with the public.

Posted on April 12, 2011

TRB’s National Cooperative Highway Research Program (NCHRP) Report 686: Road Pricing: Public Perceptions and Program Development explores road pricing concepts and their potential effectiveness and applicability. The report has a dual mission: creating guidelines for …

Posted in NewsTagged air quality, congestion, NCHRP, report, road pricing, TRB

California’s Green Trade Corridor project underway

Posted on February 18, 2011

Construction of California’s Green Trade Corridor, a TIGER grant funded project to increase the share of freight moving on inland waterways between the Port of Oakland and California’s Central Valley, began last fall.  The project is …

Posted in NewsTagged CA, congestion, emissions, freight, ports, TIGER

What does it mean to be No. 1?

Posted on February 11, 2011

Chicago and Washington, DC, tied for having the worst congestion in the nation, according to the Texas Transportation Institute. What this means to commuters is discussed in a Washington Post column “How Commuters Define Misery,” …

Posted in NewsTagged Chicago, congestion, DC
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