If you read til the end of the article it's clear this whole change is taking place because of Kyoto. You can see how draconian the measures will have to be to accomplish the Kyoto goals. I didn't see any mention in the growth of numbers of vehicles. They assume a static amount I believe.
Also, once they start in on the long haul trucking fleets, they'll have oversized picup trucks doing the job of 18 wheelers.
I especially like the part where they say the suburbs will die out and urban living will return AND PEOPLE WILL LIKE IT!
Rules legislated by people who can't manage to have more than two children.
A liberal wet dream of how "the masses" should live.