OpenStreetMap
Updating Sisters, Oregon
prathbun erabiltzaileak 13 Otsaila 2011 datan argitaratua English hizkuntzanWorking on making the Sisters area (Central Oregon, USA) more accurate.
Using MapQuest imagery, Google Earth, my own gps data, and local knowledge.
Eztabaida
James Derrick erabiltzailearen iruzkina 13 Otsaila 2011 20:21-eann
Hi prathbun, and welcome to OSM!
Please be careful with the sources you use - Yahoo! and Bing have given a specific license to OSM to use their imagery, however Google has not and should _not_ be used. Doing so could pollute the open status of OSM and prevent re-use of the resulting map.
There's lots of information in the Wiki, and don't be put off by the legal bits. Pick a nice sunny day and get the GPS out yourself - it's amazing how many mistakes you'll find in so-called professional maps!
osm.wiki/Legal_FAQ#Can_I_trace_data_from_Google_Maps.2FVirtual_Earth.2FOrdnance_Survey.2F....3F
osm.wiki/OSM_in_Google_Earth
Sundance erabiltzailearen iruzkina 14 Otsaila 2011 17:17-eann
Another thing is road names, more often then not national and state highways are missnamed, in Oregon they are Oregon Route XX, national names are
United States Route XX
This wiki page has a lot of info;
http://en.wikipedia.org/wiki/Numbered_highways_in_the_United_States#State_highways_and_other_similar_systems