We’re so precise at Park City

As we were doing our daily walk, I spotted that sign in a neighborhood not far from our house that displayed a 13.5 mph speed limit.

I mentally tried to figured out what it meant in kilometer per hour, but that wasn’t the 20 I was expecting and after checking on my phone I found that it was 21.708 kmh. So why that exacting, low speed limit? An inside joke? 

Perhaps. At any rate, I dug deeper and found out that a website “Roadtraficsigns” sells a variety of signs, including some that can be personalized to a ridiculous degree, like the one I saw. I was immensely pleased to have solved that pesky mystery.