Fox News talks to Marc Scribner on the DC gondola system:
"Street cars in the sky — that's how I like to think of it," said Marc Scribner, fellow at the Competitive Enterprise Institute. It's undeniable that Georgetown, particularly by the Key Bridge which connects to Rosslyn, is often a snarled traffic nightmare, on weekdays and weekends alike. The fact that D.C.'s Metro does not stop in Georgetown contributes to the vehicle overload.
But Scribner questioned whether a gondola system would really do much to relieve that. "The fundamental problem is this is a very inefficient way to move people around," he said. "You don't have the capacity to move people with gondolas like you do with other modes of transit."