Google maps has marked my parents in laws drive way as a road. The drive way is quite long as they are on a farm. Due to a right of way for an owner of a field who owns an enclave within their land they can’t put a gate up. It’s quite unmistakable you are going into someone’s house though. This has led to countless individuals showing up and driving through their land past their home. Lots of people stop and ask for…
You've used the suggest a change feature within Maps? I've done that several times and I think it always worked for me.
Full disclosure I work at Google, not on Maps, and I always did the suggest a change with my personal account.