Cars: Traffic—There’s an App for That

[…

The problem isn’t that stoplights are poorly designed—it’s that there’s a very tangible limit to how efficient they can be. It’s all about the yellow light.

The earliest stoplights didn’t have yellow, because they didn’t need it:….

…]

::::::::::: MIT’s Not-So-Crazy Quest To Get Rid Of Stoplights | Co.Design

http://goo.gl/1GjFLW

== PT

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