DerbyBorn wrote:
Near me are a couple of lamp-posts on opposite sides of the road (busy
estate) which have some sort of camera device aiming at the oncoming
traffic. There are no additional boxes on the posts.

The cameras are about 1.5" high; 7" wide and about 8" deep. I think they
have 3 windows on the front.

I haven't seen any others so I have discounted traffic flow monitoring. Any
ideas?


Yes. A photo would be a huge help. ;-)