March 22, 2017 11:20 am USC Students Put Their Heads Together To Analyze Worst Crosstown Traffic Records from 17,000 sensors across LA could help policymakers better understand the traffic flow. Patrick Healy reports for the NBC4 News at 4 p.m. on Tuesday March 21, 2017. US & World Videos 2:38 Why USC wants foreign students to return to campus by Jan. 13 6:59 Is compounded weight loss drug for you? 2:30 Israel says it has launched retaliatory attacks in Iran 2:36 Murder gets 12 years in prison for burning woman in North Hollywood 2:38 These are the closest finishes of the Paris Olympics
