Most dedicated car GPS have radio receivers to get the congestion alerts put out locally. https://en.wikipedia.org/wiki/Traffic_announcement_%28radio_...

It's not quite the same orwellian level of detail but it helps with the big ones.

My Garmin GPS has been getting free map updates for years and gives real-time traffic reports.

> GPS updates

I load free OSM maps on my GPS.

traffic is pretty consistent everywhere.

you also "miss" being sent to a known slow and long rout just because the buggy algorithm wants to bucket test some random path close to the daily rush hour.

> traffic is pretty consistent everywhere.

Yes, accidents always happen in the same spot at the same time on the same days, and new people visiting new places always know about those things.

I have had Google try to send me on slower routes, but I use my brain and drive the more logical way and it updates the map accordingly. Though most people are not logical, and such practices theoretically help everyone overall including the petson who is sent on a different route that time.