s/this edit/the original change/

Re: routers and route failure: the opposite here is happening as well: on occasion, I've seen routers use private drives that are mapped regardless of their private status, leading to situations where 145 NE 75th Ave gets routed down Kalahari, for example.

These are bugs in the router but situations not easily distinguishable. I don't have a good answer except to use a point marker for an address.

Either way, this edit was likely made due to gravel tailings of a historic roadway that was planned but never came to fruition or during construction of another house.

This changeset is valid. I've personally been to this location; It's a gravel patch.

The following ways are more developed traffic paths that should, similarly, not be included:

* way/904902387
* way/878451027
* way/347011628

These ways contain paths and have far more established "roads", yet are unmapped (the local area GIS doesn't feature them, neither do Bing/Google maps).