Melody Wilson at Grist: Life in the fast lane: In the D.C. area, carpooling ‘slugs’ ride fast and free

Smartphone-wielding techsters in San Francisco might call this “ridesharing,” but in the D.C. area, where carpooling has been an accepted way of life for decades, they call it “slugging.” Each day, an estimated 10,000 commuters in northern Virginia hitch rides this way. Passengers get a free ride; drivers get a free pass to use the special “HOV-3” routes, open only to cars holding three passengers or more.

“With the price of gas, and this traffic here,” Manalansan says, gesturing to the jammed lanes of 395, “it’s the best thing that’s ever happened to me.” During the almost two decades she’s been doing this, she says, slugging has reduced her commuting time by more than half.