(Beaverton, OR)  --  The City of Beaverton is being sued by a local man who claims some of the yellow traffic lights at the city's intersections are too short in duration.  Mats Jarlstrom says the short length of several yellow lights doesn't allow a driver who's unable to stop safely to get through the intersections before the lights turn red.  Jarlstrom says he began complaining to the city after his wife received a red-light camera citation at one of those intersections.  He says he plans to file the suit in federal court later today.