Rotaries v Intersections, An Exercise in Analysis

(Picture fromhere.)

This is the sort of thing my brain does. Which probably tells you more about me than you want to know. Indulge me. Next time I’ll talk about space drives. I promise.

I live up here in Massachusetts. When I moved up here, back in the Cretaceous, I encountered something called a “rotary.” It’s also called a “roundabout”, “circular intersection”, “traffic circle” and other names. Some of which are even printable. They took a little getting used to but I managed. The problem wit...