Here's What TfL Learned From Tracking Your Phone On the Tube | Gizmodo UK - 0 views
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Ian Forrester on 14 Feb 17"At the end of last year, between 21st November and 19th December, Transport for London carried out an intriguing trial: It was going to track your phone on the London Underground. Today, thanks to the Freedom of Information Act, Gizmodo UK can exclusively reveal some of the utterly fascinating findings that the agency has been able to make from all of our data "