Presumably they do see them and just assume that they will yield. However legal that might be, it's quite foolish as a practical matter.(source: many years of

Presumably they do see them and just assume that they will yield. However legal that might be, it's quite foolish as a practical matter.(source: many years of bicycling) To stay alive, you have to start with the assumption that cars and trucks simply can't see you. I loved the visual presentation of the problem, but it's hard to fathom the objection to "stop" signs as a solution. At least here in the US, I regard every four-way intersection that doesn't have stop signs or lights as inherently dangerous (and I do indeed slow way down when encountering one). Had a friend once from a Middle Eastern country, and he described their protocol thus: When two drivers approach a four-way at right angles, they look at each other. The one that looks away first has the right of way. :-(