Well, back when Allied forces were training pilots in Canada for WWII in Europe, there were many airfields built with a triangle of runways.
You can see at least two of those runways at places like Abbotsford CYXX and Victoria CYYJ, third may be a taxiway now.
I’ve seen several of the remains of triangle layouts in BC and AB when evaluating airports.
Many of those airports had at least one runway greatly lengthened since built, typically another kept usable for crosswinds, but the third turned into a taxiway.
Many airports have prevailing winds, often from the west. Lethbridge AB predominantly from the west but I presume the north wind blows some days in winter.
YVR has two long runways oriented east-west, one shorter cross runway (cold air from the north tends to come through the Fraser Canyon and out the valley so is prevailing the opposite direction).
A bit south, BLI may get northeasteries in winter as that cold air spills across the border into Ferndale at least.
Etc.
https://www.abbotsfordairport.ca/About_Us/airport_history.htm
Points for identifying the model of old twin aircraft shown.