Speed traps?

[bobobb.livejournal.com]

My friend said that she was driving on Broadway last night and saw a bunch of blue lights on video cameras pointed at intersections.  Are these speed traps or cameras snapping pictures of people who run red lights?

Comments

[boblothrope.livejournal.com]

There are cameras that detect non-emergency vehicles to make traffic lights change, but I've never seen one on a public road in the eastern U.S.

[mollyrazor.livejournal.com]

Come to Maine and you will see some. We have them at several intersections in Portland.

(I know that's what they are, because when they were installed at the most ridiculous intersection in town people freaked out all OMG THEY'RE SPYING ON US and the city was all, um, no, we are trying to make traffic flow better.)