Oops guess my article got screwed.
Basically, Federal regulations dictate that carpool lanes must move traffic at at least 45mph, even in rush hour, and I think only 2 freeways meet that currently. So one of the proposed solutions is to make carpool lanes 3+ people, and turn them into toll lanes so people would pay to drive in them if they don't have 3+.
Caltrans still doing studies, but once they turn in their findings to the gov't, they have 180 days to fix the problem.