An amusing unintended consequence was written about in an LA Times op-ed piece a couple months ago. The gist of it was that since car pool lanes in LA (as well as NOVA and DC) are open to hybrids regardless of passenger load, the unintended consequence of incentivizing hybrids in this fashion is that now there are so many hybrids in the carpool lanes that they are now congested as bad as the regular lanes and, as a consequence, more time is spent idling on the interstate and contributing to the smog factor. Just a thought, discuss.
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