L.A. freeways are designated with a route number. In addition, each stretch of freeway can have several nicknames, depending on its location or final destination. Knowing these names will help you understand traffic reports given by local radio stations (KNX 1070AM airs reports every 10 minutes).
Know the Major Roadways
Here are the nicknames of some major L.A. freeways:
I-5: Golden State Freeway, from downtown north to Bakersfield; Santa Ana Freeway, from downtown south to Disneyland® Resort and south Orange County.
I-10: Santa Monica Freeway, from downtown west to Santa Monica; San Bernardino Freeway, from downtown east to San Bernardino.
I-110: Harbor Freeway, from downtown south to the Los Angeles Harbor; Pasadena Freeway, from downtown north to Pasadena.
I-405: San Diego Freeway.
I-710: Long Beach Freeway.
US 101: Hollywood Freeway, from downtown north to Studio City; Ventura Freeway, from Studio City north to Ventura.
Lights, Camera...Traffic!
It's best to avoid freeways during weekday rush hours, which generally last from 6 a.m. to 10 a.m. and 3 to 7 p.m., unless you want to spend most of your trip in gridlock. Also, bumper-to-bumper traffic on weekend afternoons is not uncommon, especially in West L.A. But no matter what day it is, Angelenos are all too familiar with some of the freeway system's chronic trouble spots. These are usually interchanges or narrow sections of freeway, and some commuters avoid them at all cost.
The San Diego Freeway (I-405) is universally despised by drivers, and with good reason. North from Los Angeles International Airport, heavy stop-and-go traffic is the norm as I-405 heads through West L.A., over the dreaded Sepulveda Pass and meets US 101 at what is routinely ranked the most congested interchange in the country. Near downtown, you can usually count on crawling through the Four Level and East L.A. Interchanges.
If seeing the world famous HOLLYWOOD sign is on your itinerary, you'll have ample time to admire it from US 101. The freeway's legendary congestion often delays drives through Tinseltown and the San Fernando Valley.
Not to be outdone, Orange County is home to the maddeningly slow SR 91, and the extremely busy Orange Crush Interchange, where I-5, SR 22 and SR 57 converge.
Every motorist visiting L.A. should be familiar with the term “SigAlert,” an announcement issued by the California Highway Patrol when a traffic accident causes the closure of at least one lane of traffic for 30 minutes or longer.
Despite the problems, L.A.'s freeways remain the most effective way to cover long distances. Pick up detailed city maps at your AAA office and remember what former Los Angeles Mayor Tom Bradley once said: “I've seen congestion in almost every major city in the world far worse. By comparison, L.A.'s a paradise.” If traveling by air, leave plenty of time to get to the airport, especially for international flights.