How to trigger green traffic lights

The WikiHow article on how to rig your vehicle to reliably trigger the sensor at stop lights is worthless for 99% of readers. It involved strapping metal to the bottom of your car, and all other kinds of stupid shit no one would ever bother with. Fortunately the replies were worth reading.

kmattso tells the best method for avoiding red lights

Right, U-turn, Right.

louiebaur is a badass

Man when I am on my bike I can never trigger the light and I usually have to just run it!

kevman459 knows the trick

Slowly creep forward every few seconds that the light doesn't change. Many of these lights require you to move your car at least 3 times after coming to an initial stop.

Also most of the sensors are well beyond the "stop line" so you should position your car about halfway into the intersection.

MrSketch says

Best method: Stare at them. It works every time.

byrc has additional advice

Also works with women, trust me.