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What happens when a city ends HOV lanes

Associated Press

It's likely that single drivers in nearly every big city in the world have at one time looked enviously at HOV (high-occupancy vehicle) lanes that allow cars with multiple drivers to zip past them during rush hour. But what happens to traffic congestion and travel times if you just abolish them? If the experience in Jakarta, Indonesia, is an indication, it's a huge mess, a new study finds.