Salt Lake City International Airport: Waiting for liftoff

Officials at Salt Lake City International Airport are laying the groundwork for a sweeping transformation of the airfield's antiquated concourses and terminals that will create headaches for travelers in the short term but should eventually mean more...

The expansion would take place inside the current boundaries of the airport and generally within the footprint of the existing terminals, though additional, free-standing concourses would be built to the north. No additional land or modifications to the airspace above the 7,678-acre airport would be needed. Riley said.

Replacing the old concourses and terminals would be new structures that parallel each other, a tricky process similar to how the San Jose International Airport in California is being modernized.

"I describe it as a massive kitchen remodel," said San Jose spokesman David Vossbrink. "The contractor's crews are tearing out the kitchen, but you're still living in it."

The number of concourses and additional gates hasn't been decided. But parallel concourses, a configuration used at hub airports such as Atlanta and Denver, would allow airplanes to taxi to and from gates in a speedier fashion by entering from one direction and then exiting in the opposite direction.

One concourse would be attached to a new terminal with three levels and a basement that would replace the existing terminals, according to a 2006 revision of the master plan. Passengers would reach other concourses by automated people-movers.

Whatever form the design takes, many passengers seem to be onboard.

"I just think they have to do it because of the market needs," said Pleasantville resident Dewey Diloma, who flew to Salt Lake from Phoenix on Friday. "You fly into other airports that are so much nicer. We want to build our economy, and the airport is part of that."

Behind the urgency to act is strong growth in passenger numbers. The airport was originally designed to handle 12 million passengers a year. Passenger numbers reached 22 million in 2005. They declined slightly last year, but came roaring back and are on track to rival or set another record, spokeswoman Barbara Gann said.

The airport also was never visualized as a hub, which it became in 1982, several years after Terminals One and Two were built. Hubs, or central transit points for transferring passengers, typically have more restaurants and retail stores than airports where passengers only start and end their journeys. In recent years, the number of smaller regional jets, which carry fewer passengers, has increased at the airport. At the same time, the number of larger jets, which carry more passengers, has fallen. In the equation, the total number of planes has increased, with each needing its own gate.

"When airports design their facilities, they really have to consider their passenger mix," said Liying Gu, director of economic affairs and research for Airports Council International, a trade group that represents U.S. airports.

Delta told airport executives to expect passenger traffic to grow by 3 to 5 percent for several years, a rate that could cause traveler numbers to double in as few as 14 years, Enormous population surges in Utah and other Western states during the past quarter-century, fueled by strong economies, have produced ever-growing numbers of people moving around the region. Airlines have moved rapidly in the past two years to tap the trend.

The growth is one reason Delta will launch the first trans-Atlantic route from Salt Lake City next year, a nonstop to Paris.

"If we want to continue to grow and meet the . . . increase in passenger traffic, we do need to accommodate the aircraft that land here, and they will need new gates," Riley said.

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