On Nov 14, 2009, at 11:16 AM, Dave Hansen wrote: >> What really needs to be done for TIGER addresses import is match the >> streets from TIGER to those in OSM (which should be easy since they >> all still have the TIGER id's) and generate the address geometry based >> on these. Otherwise someone will need to do all of the geometry >> corrections that people have done for this data in the last nearly 2 >> years. > > I agree that this is the optimal thing to do. But it's really hard, so > I'm not volunteering to take it on. If there's anyone out there braver > than I, please speak up. :)
I hear you but for the purposes of just thinking about it... I think it might be a lot easier than we think. Forget matching TIGER IDs... if I know a line segment goes from 15th & Valencia to 16th & Valencia in TIGER then all I need to find in the same set of points in the OSM dataset which isn't going to be super hard. I find 15th, I find Valencia, see if they cross at some node. Same with the other intersection, then see if those nodes are on a way that joins both of them and find the points in between. And as long as the geometry isn't radically different then I can match up the points. I think the major problem would be divided highways where one way is now two ways with different directions, but that shouldn't be super hard to do. Yours &c. Steve _______________________________________________ talk mailing list [email protected] http://lists.openstreetmap.org/listinfo/talk
