California State Route 405, commonly known as the 405 Freeway, is a major north-south highway in Southern California. It stretches approximately 72 miles, connecting the cities of Irvine in the south to San Fernando Valley in the north. The freeway serves as a vital transportation corridor, facilitating travel across the densely populated region. The 405 Freeway is known for its heavy traffic, especially during peak hours. It intersects with several other major highways, including Interstate 5 and Interstate 10, making it a key route for commuters and travelers. The freeway also provides access to important locations, such as Los Angeles International Airport (LAX) and various shopping centers.