Useful reply but probably better served to also post your reply to OSM forum link Grant posted as I am not sure if the individual is following this list.
Regards On 29 April 2013 14:00, Tomas Straupis <[email protected]> wrote: > You can use different external sources to do different types of > comparisons: > 1. Garmin (or any other commercial) map: compare length of roads, > number of poi's, addresses. > 2. Municipality data: take lists of street names and calculate how > many of those exist in OSM (how many streets exist in OSM but are not > in municipality data - error streets) > 3. Official number/length/area of rivers, lakes. > 4. Official list of places. > 5. List of national parks, theatres, museums. > 6. Number of keepright.at errors (you probably need ratios to compare > to results of other countries) > 7. Data from commercial entities (shopping centres/networks, banks, > restaurants etc.) > > etc. I think you get the idea. > > Note that such external info could be used not only to assess quality > and quantity, but to point out missing information and automatically > detect deleted/crippled data or even detect errors in external > sources. > > -- > Tomas > > _______________________________________________ > Talk-ZA mailing list > [email protected] > http://lists.openstreetmap.org/listinfo/talk-za > -- Gerhardus Geldenhuis
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