I thought I would bring this thread back from the dead.
The underground train station at Dorval Airport in Montreal is pretty much complete. The second picture is over a year old.
At the moment the Airport Authority (Aéroports de Montréal) and the Regional Transit Authority (Agence métropolitaine de transport) are bickering over which line is best to connect Dorval Airport to downtown by rail. Aéroports prevers the CN route (in red), while the AMT prefers the CP route (in yellow).
Both have a lot of pluses and minues.
Here is the ADM's proposal. It involves contracting out a private train service to Bombardier. It would be direct between the Airport and Central Station. It would run at intervals of 20 minutes and have only 3 cars.
• Video Link
The AMT on the other hand proposes linking the airport with a new transit hub to be located across the street from the Bell Centre and Windsor Station. Trains would run on its Dorion–Rigaud Line commuter rail line.
Originally Posted by Montreal Gazette
Trains would circumvent the Bell Centre using elevated tracks over St. Antoine. Trains would arrive and leave from platforms in a new building on Peel and St. Antoine, Gauthier said.
Passengers would enter via Windsor Station's la Gauchetière St. entrance, where they would find ticket counters and commercial space, Gauthier said.
To reach train, bus and tramway platforms, passengers would then use an aerial passageway over St. Antoine.