Lik

My suspicions are:

1) Cost
More carts = much bigger stations = much higher costs. Besides, construction of the Canada Line coincided with the Olympic construction crunch, so construction was already higher than normal.

2) Extremely poor ridership projection
I don't remember the projection numbers, but essentially Translink never would have thought in their wildest dreams that the Canada Line would attract as many riders as it did. Because they completely dropped the ball on the ridership projection, they didn't think they need that many carts per train.

Naturally, there is some degree of association between #1 and #2.

3) Construction Time Frame
Facing the Olympic construction deadline, it may not be possible for bigger stations to be constructed on time.