September 19, 2015, 11am PDT
The curious case of Cleveland's new "buffered" bike lanes. The question: Why are the buffers placed between the bike lane and the curb?
August 3, 2015, 7am PDT
Roundabouts, not to be confused with traffic circles, are becoming popular throughout the United States. The Bronx will get the first one in NYC. The insurance industry and FHWA consider them far safer than traffic lights and stop signs.
The New York Times - Wheels
March 17, 2015, 12pm PDT
Joseph Cutrufo reports on a bill under consideration in the Connecticut State Legislature that would clear the way for the construction of bike infrastructure that matches the state's complete streets ambitions.
Tri-State Transportation Campaign
September 29, 2014, 6am PDT
Transportation engineers currently evaluate urban transport system performance using roadway level of service (LOS) ratings. Here are six good reasons to change.
March 4, 2012, 9am PST
Yes, the subject may seem a little dry at first, but have a look at the intersection modeling shown in Emily Badger's recent article to see what continuously flowing traffic looks like at an intersection. A brave new world indeed.
August 22, 2011, 9am PDT
The 10-lane Kennedy Expressway in Chicago is forced to manage significantly more traffic than it was designed to handle. Traffic planners have installed a flexible lane that can increase the flow in one direction, but Chicagoans are baffled by them.
November 23, 2010, 2pm PST
Charles Marohn is a traffic engineer. Despite years of training and millenia of precedents, Marohn now feels that the common practice of traffic engineering is creating bad and even unsafe streets.