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How You Can Use Your iPhone To Predict When Your Next Subway Train Arrives

How You Can Use Your iPhone To Predict When Your Next Subway Train Arrives

Tired of not knowing when the next subway train will arrive? A new app named Subway Arrival -- which was developed by native New Yorker and Columbia engineering student Alex Bell -- aims to solve that problem.

Jon Lombardo
  • 18 january 2011

Tired of not knowing when the next subway train will arrive? A new app named Subway Arrival — which was developed by native New Yorker and Columbia engineering student Alex Bell — aims to solve that problem.

The app — which leverages pre-existing technology from cellphone towers and iPhone signals — tracks your cellphone as you enter and exit the subway underground. By triangulating your iPhone signal, cellphone towers, and subway station locations, the app identifies which signal is riding which train.

Bell believes that “instead of building a complicated GPS system into all our subways, we can rely on the riders to monitor where trains are. That could save the city millions.”

There is one catch: the app needs 10,000 downloads before there’s enough data to accurately project when the next train will arrive, so download the app here to save both you and NYC time and money.

Subway Arrival

[via The New York Observer]

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