Originally Posted by docbert

The cameras at the intersection of Millbrae Ave/Rollins Road (ie, the entrance to the BART station) have been broken for at least 10 years, and just seems to randomly flash out of boredom every few seconds.

Here's a video I took 10 years ago of that intersection - if you look you'll see multiple occasions where the cameras flash despite no movement at the intersections, with the most obvious being around the 10-11 second mark. There is one stage where it does flash legitimately, when an ambulance goes through the red - www.flickr.com/photos/docbert/2399560257