November 15, 2011 5:58 pm Harbor Freeway Named Nation's Most Congested A new study confirms what LA drivers already know: LA has the worst traffic congestion in America. US & World Videos 3:34 Violent attacks continue to plague LA Metro system 2:59 Family of OC grandfather killed in hit-and-run speaks out 2:59 Redlands police searching for group of home intruders 3:29 Dismantling of Wayfarer's chapel to begin this week 2:24 UCLA's annual Spring Sing cancelled