Fastest Way To Find Road Restrictions? And Why Do Some Restrictions Even Exist?

My Garmin GPS will usually route me around restrictions, however it will only alert me to restrictions on the current stop's trip. So if I have 3 stops and there's a restriction I can't avoid from 2 to 3, I won't see it until I finish traveling to stop 1. Is there a digital road atlas or something like that?

And it's so stupid you go down a bunch of small roads instead of a highway in parts of California. Why does the CA-20 even have a length restriction when I've gone down very similar roads / highways with no restrictions? Marysville to Loma Rica in California is a good example of "restrictions" making the Garmin GPS give you some crazy route. The direct route on CA-20 and Loma Rica road is only 30 minutes on straight roadways while the Garmin route is nearly 3 hours going down small and curvy roads!

Why they exist can be one of a million reasons. Sometimes, turns can't be made safely other times it's for weight or to prevent congestion.

If your Garmin only gives you restrictions for the last trip, just put them in one stop at a time instead of all at once and invest in an actual atlas, not a digital version.

This.

Why they exist can be one of a million reasons. Sometimes, turns can't be made safely other times it's for weight or to prevent congestion.

If your Garmin only gives you restrictions for the last trip, just put them in one stop at a time instead of all at once and invest in an actual atlas, not a digital version.

Personally I don't rely on my GPS for trip planning or routing. I use Google Maps and company routing, confirm with my atlas, and use the GPS more for guidance or helpful info. But for sure if I know the route I wrote on my post-it note is good, and GPS says something different, I'm ignoring it. If I remember later I'll look at its suggestion and see if it's something beneficial for next time.