This evening, at 7 p.m. (PST), a ten-mile stretch of Los Angeles’s Interstate 405 –  the nation’s busiest stretch of road –  will close down until Monday morning.  Bracing for the worst, Los Angelans are labeling the temporary shutdown “Carmageddon.”  But is it really an apocalyptic nightmare in the making? Or a virtual snow day to celebrate? Matt Dellinger,  a journalist who specializes in urban planning and transportation, and  Alissa Walker,  a Los Angeles-based journalist who has been covering  this story, tell us if this will just be a routine highway closure, or if it will indeed be Carmageddon.  
For more on this story, visit TransportationNation.org.