I'm still trying to figure out what the "right" way is to do this. I've mapped the 409, but I'm not sure how to do the ramps, so only the main highway exists.
I'm a bit confused by the current data, because most big streets in the core are labeled "secondary" while similar streets in the east end are labeled primary.
Have to do a bit more digging on this; to figure out one-way labels and how some of the other things should be labeled.