My best guess is it's a busy road so it's dangerous and not really meant for bicycle and walking. I've done 13 miles yesterday to get a comic book on a bike and this right here is the distance between my house and a friend's house I told I can come on bike because what I just did gave me a feeling I could do it but my ass hurts so not right now. But yeah I want to see how this would play out. Before I would walk but I took a bike to a comic book store because it would've closed if I walk and I ended up getting there in time. Took longer than expected something that should've been an hour probably took 2 or 3 hours. So yeah I can do half of that for sure.
I've seen that same warning for walking. I think it's just Google saying "good luck with that; we're not legally responsible". I think those warnings have shown up more since cars would follow the GPS with zero common sense and drive into a lake or something.
Good point. It does read like a liability disclaimer.
I've noticed that Google doesn't always get the speed limit correct on more rural roads.
Or it can't tell if a temporary, lowered speed sign has been posted in a construction zone, for example.
Or as I've seen when they have got the lowered speed because of roadworks, but then keep the low speed after everything is finished. No, I think I can drive faster than 50kmh on the motorway.
I encountered a couple of highways recently in Illinois recently where they clearly set the speed limit to the highway number (highways 30 and 40 by memory)