I hear what you're saying, but at least in the US we only have 2 pieces of well labelled and persistent navigational data in the real world: street names and nu

I hear what you're saying, but at least in the US we only have 2 pieces of well labelled and persistent navigational data in the real world: street names and numeric addresses. In my experience, navigation with Google Maps can be terrible about interchange / exit lanes. It's much easier just to pick the road name and follow the well-labelled and up-to-date highway signs.