In one sense, you know congestion pricing if you've ever traveled northbound on the 15 freeway in northern San Diego County or the 91 in Orange County and used the express lanes where pricing is variable depending on the time of day you drive it.

LA County's transit agency, Metro, received "$210 million dollars from the federal government to experiment with a road pricing plan on the I-10 and I-110," writes Damien Newton of Streetsblog LA who is skeptical about the plan. "The federal dollars must be spent on projects to increase alternative transportation along the corridors effected by what is still being referred to as 'congestion pricing' even though Metro's plan doesn't change much on the highways during the most congested hours."

Newton has found the project list for the plan which includes "HOT Lanes" shown in the above map and expanding capacity on the 110 Adams Blvd. off-ramp.