Interstate 405

Interstate 405, also known as the San Diego Freeway, is a loop branch of the I-5 extending from Laguna Hills, California, up through Orange County, California and Los Angeles, and rejoining the I-5 in the San Fernando Valley. The freeway is one of the most famous in the nation for "bumper to bumper" traffic. For Los Angeles, which relies on freeways for most transportation, the 405 is a central artery on which many Angelenos travel every day.