I support it. Even if there is only 1 person per car. Usualy when i drive in that lane, i help traffic speed up. Most of the time i'm passing other traffic.
The idea is great! But at what cost? What other items will get passed when it's tacked on as part of the legislation?
FYI, they just announce on the news that the Feds have not approved the single-occupant hybrid in the carpool lane law. Any of us caught there will be fined. They estimate it may take up to a year before it gets approved.