(07-06-2015, 07:54 PM)Coke6pk Wrote: Not sure if it's an optical illusion (or my eyes are getting old), but the tunnel under the 7/8 looks very narrow for two tracks... I assume twin tracks will fit thru there. [I'm too lazy to hike down the tracks to look at it up close]
The tunnel you see is only for the freight tracks. An entirely separate new tunnel has been dug just east of it (to the left from this view) for the twinned Ion tracks. I tried to fit it into the shot, but the sheer length of the corridor combined with the greenery at the far end means it couldn't be easily shown.
And yes, there will be triple tracks in the corridor from Ottawa to Hayward; the freight tracks here get too busy to share with Ion trains like the Waterloo spur will.