Its extensive route network in the Eastern states is built around hubs in Philadelphia, Pittsburgh and Charlotte, N.C.
He added that inspectors who tracked down the aircraft at airports around Alaska Airlines' extensive route network found in all cases that the work had been performed.
It is likely to win some political sympathy because of its extensive route network and the fact that two of its jets were hijacked and destroyed on Sept. 11.
But for months, Mr. Wolf and Mr. Gangwal have argued that the airline's survival is in doubt because it is neither a large carrier with an extensive route network like United nor a low-cost operator like its growing competitor, Southwest Airlines.
In particular, they say that attracting transfer passengers, who are inherently mobile, is vital because they help to sustain an extensive route network.Mr Brown is peculiarly susceptible to such arguments.
Other factors impeding population contiguity were icefields, non-forested alpine, hydro reservoirs, extensive road networks, and primary highway routes.
Many of the improvements in the quality of life introduced during the Roman Empire, such as a relatively efficient agriculture, extensive road networks, water-supply systems, and shipping routes, decayed substantially, as did artistic and scholarly endeavours.
Extensive road networks are limited to the larger islands.
But as I said, most network carriers, which offer extensive national and international route networks and frequent-flier programs that many business travelers value for free upgrades, are fighting hard even as they lose money.
There is an extensive road network.
