If you think Los Angeles has the worst traffic in the nation, think again. While Southern California drivers sat in traffic for around 80 hours last year, Washington, D.C. commuters faced the biggest delays, clocking 82 hours, according to traffic analysts, the Los Angeles Times reports. However, Los Angeles still has some of the most troublesome stretches of freeways with the top one being the southbound 101 Freeway from Woodland Hills to downtown.