So its the automakers that collect the digital data from the cars without the owners knowing ?
No sure about "not knowing" but I do know the GPS map on my 2018 Pathfinder screen has real time traffic. I presume this traffic is analyzed with updates from cars individually reporting position updates. There is also a disclosure screen at startup that lets the driver opt out of being connected.
I worked as a transportation researcher for a fair number of years. I analyzed anonymized data based on 1 second cell phone GPS pings to calculate traffic conditions. There are a few companies that buy up all the cell phone GPS data (you can look them up) and sell this information to various agencies and universities.
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