Hi all, There are a lot of unconnected ways, created when GeoBase road matcher found a match with existing data and did not connect new nodes. With the work I have been doing with distance maps, I have inadvertantly found a way to speed up the fixing of these - still by hand, but pretty quick otherwise.
Tools are available here: http://svn.openstreetmap.org/applications/utils/distance_maps/ Method: 1) download an area of OSM data in JOSM and save to local disk. 2) Run 'distance.pl <lat> <long> -1' (lat/long of a highway node, or close to one) 3) Convert 'data.txt' to temp OSM file with 'awk -f data2node.awk < data.txt > temp_nodes.osm' or use 'grep '^#' data.txt | sed 's/#//' > test_nodes.osm' 4) Load both real OSM and test_node.OSM as seperate layers in JOSM You can now easy see which highways are routable from you choosen start point, with the '-1' option junctions of 3 (or more) nodes and terminus nodes are highlighted. If a way does not contain (or end with) any of these then is is not routable, most likely because it is not connected. Switch to real data layer and connect GeoBase way to pre-GeoBase ways by merging nodes ('m') or joining end node to nearby way ('j'). Pretty quick once you get started.... 5) Upload fixed data and select a new area to work on.... Any volunteers to adopt some areas? I'll start with Alberta south of 22X and west of 2 Simon _______________________________________________ Talk-ca mailing list [email protected] http://lists.openstreetmap.org/listinfo/talk-ca
