Quote:
Originally Posted by teh603
Ultimately, the airlines are too cheap to take the obvious answer, as are the airports themselves. Most towers (at least as of 2003, when I read some articles on this issue) are still using 1950s equipment instead of modern, more efficient GPS systems.
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The question you have to ask yourself is why? There are probably dozens of reasons why they are sticking to the older systems and a handful of reasons to modernize. It is a lot easier to build new infrastructure (e.g. in the 1950s when air transportation was expanding) than it is to replace operating infrastructure.