03-18-2018, 08:56 PM
(03-18-2018, 08:49 PM)jamincan Wrote: I don't know Quebec City very well, but it looks like part of the underground section is below the old city, which is understandable.
That's the case in the larger eastern tunnel, yes. The smaller western one appears to be to get out of the median of one arterial, into a major station serving a dense neighbourhood, then onto the far side of another arterial. See for yourself on page 22 of the PDF.