Earlier quoted context omitted.
Statistics don’t tell the story. Look at a population density map of Ontario. 30% of Canadians live in Ontario. About half of Ontarians live in the Toronto metro area alone. Overall about half the population lives in the top ten metro areas. http://www12.statcan.ca/census-recensement/2006/as-sa/97-550...
Statistics do tell the story, but you gotta use the right statistics. Using the population of arbitrary geographical regions (provinces and states) isn't a useful measure. For transit and rail, a useful measure might be something like "population density of a region encompassing 50% of the metro area population." A single rail line from Quebec City to Winnipeg, through Ottowa, Toronto, and Calgary, with a spur to Edm…
I can't speak for the latter, but we took the Canadian from Vancouver-Winnipeg for a family reunion a few years back. It was a great trip, except for the 6h delay sitting just outside Winnipeg due to backed up freight traffic (I believe VIA leases access to most of the track, and has to yield to any freight trains) that meant we were getting off the train and had to find a hotel at midnight, instead of getting picked up by family at a reasonable hour.