Yesterday being a lovely sunny day I headed out to my nearest place with a significant number of un-named roads (Goffs Oak), thinking an hour or two would knock it off. Unfortunately, when I got there I discovered loads of others that weren't on the map at all, so GPS tracked them, naming them and others as I went. However, now I have to go at least once more to finish off, and then again at least once more to do all interconnecting footways, which are so prevalent in these estates. Have traced the landuse=residential from Y! to delineate the areas. Also find that GPS traces are far better than Y! traces in this kind of environment because they are newish estates, with all the spurs, deadends, footpaths, parking areas, etc which you can't get the nuances off without actually being there. Even when there I sometimes can't decide when things are road and when they are just shared driveways to one or two houses. I usually go by the change in surface. If they have a lip and change from tarmac to sets or some other fancy surface I usually stop there.
Best road name - Dig Dag Hill.