On Mon, Jul 30, 2012 at 8:25 AM, Metcalf, Calvin (DOT) <calvin.metc...@state.ma.us> wrote: > So I'm somewhat confused about how nominatim actually works. A good example > is the building I work in (10 park plaza Boston ma) the version of nominitum > on the website gets the correct location on the first try (note mapquest has > it as the 3rd result) but they have it as being
Often what happens is that you have one of two problems, in this order: 1. Nodes 2. Incorrectly prominent areas Nodes are a major problem. In the case of a node area, Nominatim will attempt to guess at how large/prominent the area is. If it's a city, for example, it will be very lose about how far out it thinks the city borders are. Neighborhoods, same thing, and so you get these odd classifications. The solution to this is to replace nodes with polygons, period. Often related is the fact that these nodes are often labeled incorrectly, or the area nearby is. That's why much of Washington, DC is considered part of Fairfax, VA, because Fairfax is a node, and a city. - Serge _______________________________________________ Talk-us mailing list Talk-us@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-us
