Thousands of runners and spectators across the world will be in Southern California this weekend for the 40th Los Angeles Marathon. This year, the LA Marathon falls on Sunday, March 16 and it's a sold-out event.

Several roads across Los Angeles will be closed for the 40th LA Marathon, impacting traffic for many residents.

Drivers in Los Angeles should be prepared for a large number of road closures related to the 40th running of the Los Angeles Marathon presented by Asics on Sunday, March 16. The 26.2-mile racecourse begins at Dodger Stadium and travels through Chinatown,