When I think "toll road" I think limited access highway, like the NYS Thruway. We've got to pay for other kinds of roads too.

You could put a GPS tracker in the car but a lot of people won't go for that. Efforts to put more telematics in cars such as

https://en.wikipedia.org/wiki/Dedicated_short-range_communic...

have gone nowhere because nobody can find an agreeable solution for security, privacy, how to pay for the infrastructure, etc.

I meant you're making it manifest that all roads are toll roads.

I like your GPS-based toll system idea. Different roads could have different toll rates that are displayed on your device, including a meter for how much you owe, and all jurisdictions can get their money. Fueled up in one state and drove through an intervening state en route to another? They can get their money. Heck, you can do it on a county level. You can fluctuate the toll rate to effect congestion pricing.

There's a lot you can do with this idea!