Originally Posted by
genec
The newest system they are installing is one of those vision systems. They said it would "sense a human standing in the street" (at the right spot) and trigger the light. Of course I then mentioned... "where is the right spot?"
It helps me to think of the "sensed" area by imagining the sensor is a flashlight and the monitored area is in the cone of light ending in the illuminated ellipse on the pavement. (A picture would be worth a thousand words, but I'm too lazy.) It's going to be narrower at the front, so you need to be near the middle of the lane.