A substitute for GPS

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From Techcrunch: Google Mobile Maps PinPoints Your Location Without GPS

This technology uses cell phone towers (and triangulation) to locate you. While not as perfect as GPS, it should be useful for general navigation, especially with added algorithms to smooth out the jumpyness. It is an idea long speculated on (in the transportation community see: this article by my late colleague YB Yim for a review and this for one of the earliest papers on the idea. ) that is finally seeing commercialization.

1 Comment

Well it's not a perfect solution, while with GPS you have constant satellite feed (the only requirement is to "see" the sky), with google mobile maps it's to have permanent internet connection, which is not always cheap to buy.

David Levinson

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Access to Destinations

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Financing Transportation Networks

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This page contains a single entry by David Levinson published on November 28, 2007 7:53 PM.

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