They don’t need real time updates to accomplish their goals. The car just needs accurate days most of the time. Having the car download periodic updates to a database that covers the whole state is perfectly feasible and involves no tracking.
You should be worried more about tracking through license plates and cameras.
You need location data to be able to determine what limit to impose.
And I bet you anything it will be a cloud based system.
How do you think GPS receivers work?
They don’t transmit the speed limit of the current road, and for things like construction they’ll need real-time updates.
I’m certain they won’t want to push the entire database out to every vehicle for every update…
They don’t need real time updates to accomplish their goals. The car just needs accurate days most of the time. Having the car download periodic updates to a database that covers the whole state is perfectly feasible and involves no tracking.
You should be worried more about tracking through license plates and cameras.
It would work everywhere except construction sites, where we can just have cops like we do everywhere right now.
GPS is a great solution, it already tells you what the speed limits are depending on the software.