For many years automated traffic lights have been controlled by inductive loops buried in the street. Here in Utah I've noticed that most intersections now have cameras. I thought they were mainly for catching speeders. My neighor owns an electrical contracting company that installs most of the stop and go lights in the state. He said that the cameras now monitor and control the traffic signals. It's all software controlled. He also said that some community police departments have access to the recorded video to use if there is an accident at an intersection. He said that due to state laws here it cannot be used as a photo cop system. The state outlawed that years ago. -----Original Message----- From: pic microcontroller discussion list [mailto:PICLIST@MITVMA.MIT.EDU] On Behalf Of Robert B. Sent: Monday, June 14, 2004 7:00 PM To: PICLIST@MITVMA.MIT.EDU Subject: Re: [OT]: detecting emergency vehicles Are you serious about the cameras on redlights comment? I always thought that was just a joke... If you are, it sounds to me like Californians are loooooooong past due for a tax-break. ----- Original Message ----- From: "David Schmidt" To: Sent: Monday, June 14, 2004 8:17 PM Subject: Re: [OT]: detecting emergency vehicles > Since a lot of intersections have cameras to catch red light runners > (at least here in So. Calif), I wonder if they're also snapping > pictures of vehicles that activate the green/red light sensors to > catch abusers. > > Dave > > > IR strobe on the EV, to activate all red, or straight through green > > on the > traffic light. > > -- > http://www.piclist.com hint: To leave the PICList > mailto:piclist-unsubscribe-request@mitvma.mit.edu -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu