Oops. Not sure how I missed that in JOSM validator. I've fixed that, and checked all the other speed limit signs in the area.

Looks like you took away the "construction" status of Stoney Trail motorway and tagged it as an active motorway. I drove past this two days ago and they were still actively paving it. The contractors have not announced it opening. Did you change the status in error? What source do you have for it opening? A major change to a major highway like this should probably go in its own changeset.
Thanks

That import came from the Government of Canada and was quite accurate in my home town, as well as checks throughout the province. I think it may have pre-dated the availability of Bing Maps imagery, using Yahoo aerial imagery at the time, and probably low resolution in Prince Rupert area.
I've looked over your edits, and they look good to me - thanks for letting me know!