So, a heavy freight train could physically go right to the Pearson station without issue?Id have to really dig, its been over 5 years since it was discussed. Maybe someone else on the forum can help me out.
But basically in order to have the airport spur connected to a heavy rail line such as the Georgetown corridor, it had to be built to mainline standards even though that was way more than what was necessary to adequately support the relatively light UPX trains.
I'm not sure what mainline standards entails but I was told basically you could run a full 12 car go train on it no problem.
Its why the spur looks so overbuilt, and was a significant cost of the UPX.