@davidzipper Traffic rules are best when they are simple, clear, and doesn’t have any conditionals. It’s effectively a program or algorithm if you will that needs to be installed in all drivers heads, and the human brain is terrible for that.

Green go. Red stop. So simple.

I also like the three cycle in areas with heavy walking traffic. No walking during the two first ones, and only walking during the third, with the option to walk diagonally. Very simple.