Transportation

Los Angeles has 27 intertwining freeways handling millions of commuters on a daily basis. Los Angeles is the most car-populated metropolis in the world with 1 registered automobile for every 1.8 people.

Public transportation
The Los Angeles County Metropolitan Transportation Authority and other agencies operate an extensive system of bus lines, as well as subway and light rail lines across Los Angeles County, with a combined daily ridership of 1.7 million.[68]. With 1.4 million daily boardings, the ridership on Los Angeles' bus network is second only to that of New York. The city's subway system is the ninth busiest in the United States and its light rail system is the third most ridden in the country.
Nevertheless, given the population of the city, Los Angeles' mass transit system does not have high ridership, averaging 276,900 trips a day, a mere 0.4% of the 65 million daily commutesAltogether, 11% of Los Angeles commuters use public transit (including both bus and rail),[70] compared with 54% and 38% in New York and Washington, D.C., respectively.

Los Angeles subway at Wilshire/Vermont
The rail system includes the Red and Purple subway lines, as well as the Gold, Blue, and Green light rail lines. The Orange Line, although a bus rapid transit line rather than a rail line, is usually considered part of the system. The Metro Rapid buses are a bus rapid transit program with stops and frequency similar those of a light rail.
An extension of the Gold Line running from Downtown to East Los Angeles is currently under construction, and is expected to open in late 2009. A second extension from Pasadena into the foothills is being considered. Also in the works is the new Expo Line, which will run from Downtown into Culver City. Construction of this line is expected to finish in the summer of 2010. Plans of a second phase extending the line into Santa Monica are currently being assessed. Momentum is slowly building to extend the Purple Line under Wilshire Boulevard all the way to the ocean in Santa Monica, extending the city's public transportation system further.
Metrolink Commuter rail connects Los Angeles' historic Union Station to far-flung suburbs of Ventura, San Bernardino, Riverside, Orange, and San Diego Counties.
Intercity passenger service is provided by Amtrak. Rail shipping is handled by Union Pacific Railroad and BNSF Railway.

Air transportation

LAX, the fifth busiest airport in the world.
The Los Angeles metropolitan area is served by more airports than any other city in the world.[71] There are six commercial airports and many more general-aviation airports. The main Los Angeles airport is Los Angeles International Airport (IATA: LAX, ICAO: KLAX). The fifth busiest commercial airport in the world and the third busiest in the United States, LAX handled over 61 million passengers and 2 million tons of cargo in 2006.[72]
Other major nearby commercial airports include:
(IATA: ONT, ICAO: KONT) LA/Ontario International Airport, owned by the city of Los Angeles; serves the Inland Empire.
(IATA: BUR, ICAO: KBUR) Bob Hope Airport, formerly known as Burbank Airport; serves the San Fernando and San Gabriel Valleys
(IATA: LGB, ICAO: KLGB) Long Beach Airport, serves the Long Beach/Harbor area
(IATA: SNA, ICAO: KSNA) John Wayne Airport of Orange County.
(IATA: PMD, ICAO: KPMD) LA/Palmdale Regional Airport is owned by the city of Los Angeles and serves the northern outlying communities of the Santa Clarita and Antelope Valleys.
The world's busiest general-aviation airport is also located in Los Angeles, Van Nuys Airport (IATA: VNY, ICAO: KVNY).[73]

Harbors

A view of the Vincent Thomas Bridge reaching Terminal Island.
The Port of Los Angeles is located in San Pedro Bay in the San Pedro neighborhood, approximately 20 miles (30 km) south of Downtown. Also called Los Angeles Harbor and WORLDPORT LA, the port complex occupies 7,500 acres (30 km²) of land and water along 43 miles (69 km) of waterfront. It adjoins the separate Port of Long Beach.
The sea ports of the Port of Los Angeles and Port of Long Beach together make up the Los Angeles – Long Beach Harbor. There are also smaller, non-industrial harbors along L.A.'s coastline. Most of these like Redondo Beach and Marina del Rey are used primarily by sailboats and yachts.
The Port of Los Angeles along with the Port of Long Beach comprise the largest seaport complex in the United States and the fifth busiest in the world.
The port includes four bridges: the Vincent Thomas Bridge, Henry Ford Bridge, Gerald Desmond Bridge, and Commodore Schuyler F. Heim Bridge.