Apparently not. The hints only give "road", too. Perhaps "road" is slightly more likely, but I don't see why you can't forget a way (as in "route") just as much as a road. I've reported it.
Can't you say "I had forgotten this road"? It seems more natural than "I forgot". "I have forgotten this road" just seems wrong, as it would be like "I don't know this road exists"!