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WingbeatPony
#397284
11 months ago
I am...missing something here. I must not live in the same part of the world as these things.
pervotron2000
#398285
11 months ago
I don't know about the middle one, but the other ones are lane control lights, used on lanes that switch direction at different parts of the day for rush-hour traffic. Red X means the lane's not to be used (typically because opposing traffic is using it), green arrow means it's OK to drive in that lane.

I assume the middle one is used like a yellow light at an intersection - a buffer between green and red.

Oh, look:
http://en.wikipedia.org/wiki/Lane_control_lights