The Greater Toronto Area has some of the worst traffic congestion in North America. But I suppose that it could be worse. The November 25 1950 edition of the Toronto Daily Star reported on an eight-hour traffic jam near Thornhill:
I’m fascinated by the idea that drivers were given a chance to get a running start at the hill, and five tow trucks were on standby to handle the cars that didn’t make it.
I tried to find the hill on Google Street View – this might be it. Of course, the road is considerably wider today.