Might be a Canadian thing. Toronto is similar. If I recall correctly, Toronto operates the second most used public transit system in the United States or Canada, while the public transit authority there is the largest parking garage operator in North America.

It’s a pretty good solution for medium-sized cities, but it breaks down as population increases. Toronto has largely stopped building these garages because they’ve run out of room for them after immense population and ridership growth.

Toronto is a pretty big though, so it’s still a solution worth exploring for medium-sized cities that can still reasonably build these facilities.

Same with New Jersey + train into Manhattan

Same in the us