Leon wrote:
"R.H." wrote in message
. ..
This week's set has just been posted:

http://puzzlephotos.blogspot.com/


Rob



832. Traffic control sensor. Used to change the traffic light to green
when an emergency vehicle approaches the intersection.



Not in my area. It is just a regular traffic
camera. Emergency sensors are much smaller where
I live (about the size of the knob atop the light).