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Re: Canarsie CBTC

Posted by Stephen Bauman on Fri Jun 17 13:49:28 2005, in response to Re: Canarsie CBTC, posted by RonInBayside on Fri Jun 17 13:18:33 2005.

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Yes, you're right. With accuracy of plus/minus 15 feet, GPS is good enough to keep trains on the same track away from each other, but not good enough to properly govern two adjacent tracks by itself.

No, Mr. Jeff H was correct in asserting that fixed beacons were required for determining position. I merely pointed out that you were wrong in your assertion that GPS could be used as an alternate.

Does that make you a liar or an ignoramus?

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