I disagree. I think that the benefits of having a train station close(r) to town far outweighs the added few minutes. And we have to remember that it would only be a few minutes: VIA owns the tracks to the train station and I believe is the exclusive user. The tracks are relatively straight and are planned to become completely grade-separated once the at-grade crossings in Barrhaven are rebuilt. What that means is that trains can travel at high speeds all the way to the station, unlike in many of the French towns which have suburban HSR stations to bypass congested and curvy inner-city rails.
That's not to say that everything is perfect:
- As I said, the tracks need to be grade-separated in places like Barrhaven
- The tracks need to be double-tracked, maybe even triple-tracked if we plan for a possible regional O-Train network.
But that said, I think we could build these improvements five fold for the price of building a greenfield alignment and an airport tunnel and a new station. It is true that that new station would shave 5km off of the 550-some-km Toronto-Montreal route (0.9% shorter), but that only translates to about 3 or 4 minutes over a 200-minute trip.
On the other hand, that would probably add AT LEAST 10 minutes to all the Ottawa passengers. One of the great advantages of rail over air travel is that you DON'T need to make your way all the way out to an airport. If anything, we should be thinking of bringing the train station CLOSER to downtown so that it can better provide something which airplanes never can - a downtown-to-downtown connection.
So the way I see it, it would be much more expensive, take longer to get to, but not provide any noticeable time savings for people travelling from Montreal to Toronto.
EDIT:
I've actually been toying with a fanciful idea for the last few days - what if we were to demolish emptying DND buildings and turn it into an underground rail terminus? It'd be only 300m from downtown (across the Canal and through Confederation Park), 300m from Rideau Station (either through the Rideau Centre or via a new underground connection), 300m from the ridership-rich university and directly adjacent to the Conference Centre. The tracks could run under the Nicolas Expressway, like they're planning on doing for the Ottawa River Parkway. (perhaps a little deeper so as not to sever the pedestrian connections under the road)
Pros:
- A station downtown is a condicio sine quad non for a regional O-Train system to the suburbs and beyond. Having people transfer at Tremblay is non only cumbersome, it'd put significant strain on the Confederation Line as entire trains of people from Barrhaven or Stittsville would try to fit into already-filled LRT trains of people from Orleans and the East End at the same time.
- It would literally be a stone's throw from the Conference Centre. I can imagine that having it so conveniently located would make it a much more competitive alternative to Toronto or Montreal for events that aim to attract people from both cities.
- It would be an incredible entrance to Ottawa: you'd exit right onto the Canal with arguably the best view of Parliament instead of in a an industrial park on the wrong side of a freeway two kilometers out of where you want to go.
- If we demolish DND, it would be relatively easy to build an underground station by just digging down and covering the hole with a building/buildings. I'd imagine that you might even be able to offset some of the construction cost by building some towers of prime real-estate above.
Cons:
- It would probably cost somewhere close to $1B
- It wouldn't be smack-damn in the middle of town
- It would require trains to either back out of the station (if there's only on cab) or reverse directions (which they'd actually be able to do with the new 50/50 seating arrangement).