The truth is that a large percentage of those in the carpool lanes are not going to or from work -- they're doing something social, which is why there are two in the car: mother and daughter going shopping, husband and wife headed off to some event, couple of friends going to the beach or the mall -- while hardworking folks are crawling along at half the speed and buring twice the fuel. IT'S DISGUSTING. Carpool lanes are a fraud, a piece of social engineering that has failed but which its supporters refuse to analyze dispassionately.
Here is CA, carpool lanes are used less then 10% of the time "off-hour" and at best, are only used 37% of the time at "peak" times while the goverment forces traffic jams on everyone else.
If I where governor for one day, I would remove and end all car-pool lanes.
And did you ever try to get out of the diamond lanes across 4 lanes of stopped traffic.
The commute lanes backup more than the regular lanes. It was easier to not use them the few time I could.
Plus people who work sales or service/repair equipment cant use them.