From MERX:
VIA Rail Canada Inc. is looking to pre-qualify three (3) firms to execute signal work on existing CTC, Automatic Warning Devices, Hot Box Detectors as modifying circuits, upgrades or installation of new equipment (mast, gates, cantilevers, etc) for all subdivisions: Alexandria, Beachburg, Smiths Falls, Brockville, and Chatham.
https://www.merx4.merx.com/public/solicitations/199189927/abstract
Wait... the Beachburg Subdivision? Isn't that abandoned?
Preclearance is only possible when no intermediate stops are made before US soil - so Adirondack will lose Saint-Lambert as a stop once border clearance is done at Gare Centrale. Similarly, no stops are made between Vancouver BC and the border on Cascades. Discontinuing all stops in between Niagara Falls NY and Toronto Union has far larger implications for Amtrak Maple Leaf.
Dropping all but one or two of the Canadian stops would obviously be a problem if VIA/Amtrak is the only rail service in the corridor, but once GO is serving the local destinations it wouldn't be such a big deal. In fact, regardless of customs requirements, it's better to have the long-distance trains make as few stops as possible to keep times competitive between major cities, while overlapping regional services provide service to the communities in between.
The only other likely International Train here is one to Chicago again, but I don't see that until track speeds go up a fair bit.
With current tracks, the travel time to Chicago would be about 10 hours. Toronto-Windsor currently takes 4h13 and Detroit-Chicago takes 5h24. A 10-hour trip is pretty long, but that's not necessarily a dealbreaker. The Chicago-Toronto route happens to have Detroit smack in the middle of it, which makes for a lot of ideal intercity rail-distance trips. Chicago-Detroit and Windsor-Toronto services already operate, and are both planned to get upgraded infrastructure and increased service. At least a couple of those trains should run the full route from Chicago to Toronto because they could attract some long-distance travellers who would otherwise be dissuaded by the transfer in Detroit. There doesn't need to be a full trainload of Chicago-Toronto customers to be worthwhile, because each half of the route is justified in its own right and would be operated regardless.
10 hours also happens to be the ideal duration for an overnight train. You can leave one city at around 10PM and arrive in the other at 8AM - with just enough time for a standard 8-hour sleep in between. Such trains could be more profitable than typical long-distance sleeper trains because they avoid the need for expensive dining and recreation facilities - a single café/lounge car would do. I think the prospect of falling asleep in Toronto and waking up in Chicago or New York would be very attractive even if sleeper tickets are several times more expensive than daytime train tickets, because they directly compete with an extra night in a hotel. Economy-class coach cars would also provide a budget overnight option and make the train able to serve short trips within the daytime segments (such as Toronto-Buffalo and Albany-New York).
Here's a graphic I made showing roughly what time an overnight train might arrive in various American cities if it left Toronto at 10pm.
Even with ordinary-speed rail I could see the following daily services operating out of a Toronto pre-clearance facility:
- Toronto-New York daytime (existing)
- Toronto-Buffalo daytime
- Toronto-New York overnight
- Toronto-Chicago daytime
- Toronto-Chicago overnight
That's 5 departures per day, which is more than the current pre-clearance facility in Vancouver and the proposed one in Montréal combined.
I see the VIA-Amtrak opportunity here as one of a Toronto-Buffalo rail shuttle.
Right now the combined train for the above 'The Maple Leaf' is Toronto-NYC which is an absurdly long trip, never mind the corridor issues.
The traffic volumes Toronto-Buffalo are there to support more service (as opposed to Toronto-NYC where I think that is highly dubious without drastic speed improvements).
However, they would have to address pre-clearance customs issues. A 2 hour hold up at the border is a non-starter, and they need a frequent-traveler program that almost completely bypasses customs.
That, along with some modest corridor improvements could get you Toronto-Buffalo in 2.5 hours or less with a great deal less hassle than driving.
I think 4x per day, per direction would be feasible.
A pre-clearance facility would definitely make Amtrak an attractive option for Toronto-Buffalo travel. A single trip leaving Buffalo for Toronto in the morning and returning to Buffalo in the afternoon would nicely fill the gap between daytime and overnight services to New York: