Vague satnav destination

Satnav works very well. Put in a precise address e.g. Sonehenge, or Gunter's Fish Shop, Grimsby, or the Magic Roundabout, Swindon, and the device gives you a precise series of directions to arrive there, from wherever you are.

But suppose you are in a precise place, and have a "wherever" destination? The machine will kind of do the initial stages of this - if you enter "coffee shop" it will show you a selection of different ones on the map. But to start the navigation process you have to discard all but one options.

Proposed is a protocol to define a generic class or spread of potential destinations, and the machine directs you to the nearest or the bet according to pre-defined criteria. If you take a wrong turning, or if there is a crash and a tailback, the machine doesn't re-route you to the same initially chosen destination but silently calculates the shortest or quickest rout to the current nearest or best.

For example, I want to go to the coast. I enter "the coast" and the machine starts running, taking me to the nearest coast. Or I enter "international border crossing post" and it doesn't ask me which one I want, it just takes me to the nearest.