
| 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 |