"You don't realize how many calories you're taking in until you start keeping track, " said Hill.

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North Carolina received money to start improving existing track and an agreement was signed with rail freight company Norfolk Southern Railways to start exploring a major high-speed rail corridor between Charlotte and Raleigh.

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Drivers can also tell the app to add a track to their playlist, pause a track, play similar music or start an album, track or track radio.

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