Los Angeles International Airport (LAX/KLAX), CA, USA

Los Angeles International Airport (LAX) forms a crucial part of the economic infrastructure of southern California and is the sixth-busiest airport in the world. LAX is owned and operated by Los Angeles World Airports (LAWA), which also operates another two international airports, Van Nuys and Ontario International airports, in Southern California.

LAX airport occupies 1,386ha of land. In 2008 the airport served 59.8 million passengers and handled 1.8mt of cargo. It is the world's 13th-largest airport in terms of cargo handling. LAX is also the busiest origin and destination (O and D) airport in the world. The airport annually contributes about $61bn to the US economy.

LAX history

The LAX airport site, known as Mines Field, began its operations on 1 October 1928. The site was used for military flights during the World War II. Commercial airline service at the airport began in December 1946. The LAX terminal complex was built in 1961 along with a 172ft control tower.

By the 1980s the airport had constructed international and domestic terminals along with a two-level roadway. A new 277ft FAA control tower with advanced equipment commenced operations in April 1996. The old control tower served the airport for 35 years.

Master plan

Because of the airport's relatively urban setting any major expansion plans will always be met with opposition. The airport authority initiated a master plan in 1994 and has been modifying it ever since.

The first phase was to research requirements, the second to develop alternative solutions and the third, begun in 1997, examined the environmental impact, with public consultation taking place between 1999 and 2003. The consultation process has continued due to some disagreement over the exact form of the expansion of the airport. The public outreach meetings to consider LAX master plan amendments took place in March 2007.

Although most of the specifics had been determined there were some controversial "yellow light" projects. Initial studies predicted more than 157 million passengers and 8.9mt of freight a year will pass through the region's airports by 2020.

Expansion plans

The three planning stages for expanding Los Angeles International Airport had provided four alternatives, A, B, C and D, to manage the requirements that future demand levels will bring. A, B and C mainly concentrated on the expansion of the airport to the west. The proposals included the addition of new runways, a terminal, a concourse for Tom Bradley International Terminal (TBIT) and automated people mover (APM) systems connecting to the central terminal area.

In 2005 alternative D was chosen as the favoured plan for the expansion of LAX and the cost of the airport reconfiguration was estimated at $11bn. However, in April 2007, LAWA suspended alternative D because of strong opposition from residents near the airport.

The key component of alternative D was the restriction of vehicle access by moving passenger pickup and drop-off from the centre of the airport to a new ground transportation centre near the entrance with eight 1,400ft curbs and a 7,500-space parking garage. An APM would then connect to a new 6.5 million sqft terminal complex, which would replace the existing four million sqft terminal.

Existing parking structures were to be demolished to make space for the expanded facility. An intermodal centre situated at the southeast corner of LAX would link light rail and buses to an additional 14,600 parking spaces. The plan also included realigning runways, extending the MTA green line to the airport and new consolidated car rental facilities.

Gate space was to be reconfigured to accommodate larger gates for next-generation aircraft. The number of aircraft gates were to be decreased from the existing 163 to 153.

The mayor of LA believed that the changes would make the airport less of a terrorist target by removing the majority of vehicles from the terminal area and by enabling state-of-the-art screening technology. The revamp was scheduled for completion by 2015.

Change of plan

In November 2008 a new plan was developed focusing on rebuilding and renovating existing terminals, giving priority to accommodate new larger aircraft and increase security. The modernisation plan involves remodelling of the airport infrastructure. It aims to create a greener and lighter terminal. Fentress Architects was chosen for modernisation design of LAX. The new design is a roof top flowing in the form of rhythmic waves, inspired by the Pacific Ocean.

Terminals

The airport has nine terminals in a central complex with parking spots for about 140 aircraft.

The total area of the passenger terminals is 3.8 million ft² and that of cargo terminals is about two million ft². The nine terminals in the complex are linked by a U-shaped two-level roadway. A free shuttle bus service is provided. The central terminal area has a baggage check-in facility on the upper departure level and a baggage claim at the lower level.

The terminal also features cocktail lounges, duty-free shops for international flights, restaurants, restrooms, business centres and public telephones. The TBIT has a first aid station and special phones that are connected to the transport and hotels.

Air traffic control

LAX airport has four east / west parallel runways of 150ft wide: 24R/6L, 24L/6R, 25R/7L and 25L/7R. The uniquely designed control tower serves the four parallel runways, which are handled by individual ground controllers. The central position of the tower cab operates the gate-hold positions, flight data and clearance deliveries. The airport is served by about 80 passenger and 20 cargo carrier flights of all the major airlines.

LAX airport also acts as a base for the US Coast Guard's Air Station Los Angeles facility. The station is located near the north runway complex and is used for controlling oil pollution in coastal waters and maritime law enforcement.

Car parking

The airport has a total of about 25,000 car parking spaces including 10,000 slots in the central terminal and about 11,000 in the long-term parking areas. Terminal 4 has valet parking. There is also public bus service of Metropolitan Transportation Authority Bus Center in the airport's north-east.

Runways

The north runway would be reconfigured to accommodate a central taxiway and give improved separation between runways. The southernmost north runway (runway 24L) would then be relocated approximately 340ft south, which would require the demolition of the existing Terminals 1, 2 and 3, and the northern portion of the TBIT. A new satellite concourse would be constructed just west of the TBIT to replace the gates demolished.

The satellite concourse would be connected to the central terminal area (CTA) by an underground APM. On the south runway system, the southernmost runway (Runway 25L) was relocated approximately 50ft south to accommodate a new centre taxiway between the south runways to improve airfield safety.

Construction of the $83m centre taxiway began in April 2007 and it was opened in June 2008. It is a part of $333.6m South Airfield Improvement Programme (SAIP). The new centre taxiway significantly improves airfield safety and reduces the possibility of runway incursions. The centre taxiway was designed by HNTB. CH2MHill acted as the construction manager and O&G and Tutor-Saliba were the general contractors.

Intermodal transportation

A new Intermodal Transportation Centre (ITC) located at the northeast corner of Imperial Highway and Aviation Boulevard will provide the primary short-term parking for the airport with access by APM to the CTA with one stop at the new consolidated car rental facility.

The ITC will improve transit access with a direct connection to the Metro Green Line's Aviation Station and serve as the connecting point for regional transit buses and future MTA rapid buses. A pedestrian bridge with moving walkways will connect the Green Line Imperial / Aviation Station directly to the ITC and the APM system to the CTA.

Car rental

The consolidated rental car facility (RAC) will consolidate all on-airport rental car operations for LAX for the convenience of passengers and improved efficiency for the car rental companies. The new facility is to be connected via the new APM to the CTA and ITC to alleviate the traffic impacts of multiple shuttle buses.

Security screening of passengers and baggage would be introduced for passengers prior to boarding the APM trains. The APM is intended to connect the GTC, RAC and ITC to the CTA. The trains will be designed to accommodate passengers along with luggage and trolleys. The service would run every 2mins with a waiting time of just 1min.

Tom Bradley international terminal renovation

In February 2007 the $723.5m renovation of the Tom Bradley terminal began. It was the largest individual project in the history of the City of Los Angeles. The ground-breaking ceremony occurred on 26 February 2007 and was officiated by the Mayor of Los Angeles, Antonio R Villaraigosa.

The construction of the project is scheduled for completion in February 2010. The project includes major interior renovations, installation of an in-line checked-baggage security system and a second boarding gate for new large aircraft such as the A380.

The construction work will be performed while the terminal is fully operational, which will make the works more complex. The terminal was first built in 1984 and this will be its first major renovation. The project will add approximately 45,000ft² of space in the terminal and incorporate a $140m, in-line baggage security screening facility.

Passengers will check in, receive their boarding passes and then check their luggage with the airlines, where it will be conveyed to security screening and then to flights. The large explosive detection machines currently in terminal lobbies will be replaced with newer-generation machines with higher efficiency and throughput and moved to the new security facility. This will effectively reduce congestion in the ticketing lobbies by removing the need for passengers to wait with checked luggage while it undergoes security screening.

Terminal renovation

The renovation has been designed to make the terminal more comfortable and convenient with interior improvements that include upgrades to the lower / arrivals level lobby and concourses for inbound international passengers, restrooms, accessibility measures for passengers with disabilities, new elevators and escalators, new paging and clearer signage, better temperature control and ventilation, fire and life safety systems and electrical systems.

Additional renovations to the passenger boarding lounge and outside ramp area at Gate 123 on the north end of the terminal concourse will effectively create a second gate to accommodate the new generation of jets such as the Airbus 380 and Boeing 747-800.

Another gate on the south end of the terminal concourse (Gate 101) was renovated in mid 2006 to accommodate the new jets in advance of test flights to increase airport compliance as it will need to accommodate larger planes as it is a major Asian feeder hub.

New lounges

There will be four new lounges with new amenities and furnishings, which will replace 16 individual lounges and expand the terminal's overall lounge space to 47,000ft² (an increase of 72%). Three of the new lounges will serve airline alliances and the fourth will be for customers of airlines not affiliated with an alliance.

Technology

The terminal will receive new modern technology such as dynamic video monitors that automatically update flight status and information technology components that support the upgrades and promote better passenger flow.

LEED standards

This project will be the first at Los Angeles Airport to incorporate Leadership in Energy and Environmental Design (LEED) standards developed by the US Green Building Council.

The terminal will receive more efficient heating / ventilation / air conditioning systems and more efficient electrical and lighting systems, which will reduce energy consumption, while new plumbing systems will increase water conservation. Over 75% of the construction and demolition waste will be recycled or salvaged and the design will feature local and sustainable building materials and finishes.

Financial

The overall cost of terminal renovation project is $723.5m. The airport has already invested $147.9m in architectural and engineering designs, purchase of new passenger loading bridges and construction of the first boarding gate for next-generation jets, lounges and terminal operations offices.

The project is being funded by a combination of sources, including passenger facility charges, airline reimbursements and airport revenues. The US Transportation Security Administration agreed to a letter of intent for partial reimbursement for the in-line baggage security screening system in 2007.

Construction

Construction of the TBIT is being carried out by a Clark / McCarthy joint venture, which is comprised of Clark Construction Group based in Bethesda, MD, and McCarthy Building Companies of St Louis, MO. O'Connor Construction Management has provided cost estimating, CPM scheduling, phasing studies, constructability analysis and value engineering. Parsons is acting as the construction manager for the project.