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Piling on carpool lanes

Ted Balaker
January 17, 2006, 7:11pm

Earlier I explained the obvious–"pregpools" don't spare the road from an extra car. That kind of carpool doesn't do anything to cut congestion and HOV lanes in general don't do a very good job of cutting congestion. More evidence of this comes via Bob's most recent newsletter (which Len links to in the previous post). Bob points to some work by Berkeley's Pravin Varaiya which finds that carpool lanes can actually increase congestion: The Varaiya article is available on page 2 of this rather big pdf.

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