January 3, 2018, 6am PST
Virginia's 66 Express Lanes feature uncapped tolls that change every six minutes with the level of congestion, with most revenue benefiting transit. Carpools travel free, but solo-drivers in electric vehicles pay like others.
August 7, 2015, 6am PDT
If you opened Google to do a search on Wednesday, you'd see an image (the "doodle") of a traffic light and six Model-T era cars spelling out the company's name. It was honoring the 101-year anniversary of the birth of the electric traffic light.
May 7, 2015, 1pm PDT
Certain intersections stand to gain from losing their traffic lights. According to this study, cities can save money and improve safety by uninstalling signals in low-traffic zones.
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.
January 16, 2011, 5am PST
Randal O'Toole points to a thesis paper that proposes a new approach to traffic flow at major intersections.