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by Andrew Posner, Providence, Rhode Island on 10.10.08 GPS--So Many Uses We've already seen how GPS can be used to that the current U.S. air traffic network--built during the second World War--"is costing U.S. airlines billions of dollars in wasted fuel while an upgrade to a satellite-based system has languished in the planning stages for more than a decade." The new system would cost $35 billion to implement, and would "replace the current radar system with the kind of GPS technology that has become commonplace in cars and cell phones. . .it would triple air traffic capacity, reduce delays by at least half, improve safety and curb greenhouse gas emissions." How would it accomplish this? Quite simply, by allowing planes to fly in a straight line to their destination, rather than "zigzag from one beacon to the next, sometimes... [read full story]
