I'm sure they studied that alternative (along with many others). I checked the
BCA document and it does propose a 4th track eastwards from Aldershot to east of the platform at Burlington. But then, the build at Bayview-Stewart already exceeds what was documented in the EA and the RER BCA. And the BCA makes no mention of a 4th track Port Credit-Canpa, which there have been lots of rumblings about also.
More track is not a bad thing, but I wish ML would clarify when its plans drift away from the documents they put out before. Call me naive but I still think we ought to be able to rely on what they tell us.
- Paul