Mobile phone provide real time traffic congestion information

textually.org reports:

Vodafone UK and navigation systems company TomTom will offer a service in the Netherlands where mobile phone signals sent from traffic jams will enable a real-time travel information service, according to Reuters.

"Mobile phones continuously beam signals to their nearest base stations, which gives the network provider the approximate location of the phone. TomTom will use this location information to establish if roads are congested, if and by how much the trip will be delayed, and if alternative routes can be suggested. "

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