It would be somewhat reliable, although - depending on proximity - perhaps not that different from simply drawing a sector around south-west London: https://www

It would be somewhat reliable, although - depending on proximity - perhaps not that different from simply drawing a sector around south-west London: https://www.google.com/maps/search/waitrose/@51.505609,-0.3342179,10.18z https://www.google.com/maps/search/waitrose/@51.505609,-0.33... . The rub is that this area is not well-connected to the tube, at least for another 10-15 years.