If you check council mapping, this is the official south end of Valley Road as a trafficable road from Bathurst Rd. If you look to the south end of Victoria Crescent further to the south, there is a continuation of Valley Road.

The line of (unformed) road continues through the bushland joining the two in a continuous road reserve.

Until you stop removing my corrections on this, taxis and delivery drivers will get misdirected. 

It makes open street map disreputable.