Architectural detail, Nakagin capsule tower (Tokyo, 1972) from Ignant.de
Combine two assumptions — further population growth in Metro Vancouver and continued vehicle use at the current rate — and the result is a big mess of trouble.
Blogger Gordon Price has flagged a recent mini-lecture/video by Matt Taylor, who considers the effects on Metro Vancouver of having 730,000 additional cars on the road by 2041. This number is derived from the crude multiplier of forecast population growth times current vehicle miles driven per capita.
We would need to invest the equivalent of one rapid transit project per year to handle the additional traffic plus many billions of dollars for new parking spaces.
The proposition is ridiculous, of course. Mr. Taylor is campaigning for rapid transit as a better alternative.
Fraseropolis 
That’s why it makes so much sense, also for drivers, to support alternatives, such as transit and cycling, so that the cost and the space needed for roadway and parking expansion doesn’t get even more out of hand.