Why Carpool Lanes Don't Work

"Carpool lanes don't work. At least not if their purpose is to get commuters to form carpools...Research shows that most of the people who use carpool lanes, which typically require two occupants per vehicle, aren't teaming up to get to work. They're usually families going to school, the mall or somewhere else...A better solution would be to require that at least two occupants of vehicles using carpool lanes be licensed drivers."