[OSM-talk] Free aerentical data

[Rahkonen Jukka]

J.D. Schmidt wrote:


> > "Users: X-Plane users have added many other airports, 
> nav-aids and all the taxiways.  This data is imported into 
> the same database as the DAFIF data, and in many cases 
> enhances or corrects the DAFIF data."
> > 
> > It is under GNU GPL
> > 
> 
> Please refrain from importing any danish airports - they have 
> been manually inserted long time ago in OSM from official and 
> current airport charts supplied by the local civil aviation authority.
> 
> An example - EKCH/CPH - Copenhagen airport/Kastrup can be seen here :
> http://informationfreeway.org/?lat=55.619414169994286&lon=12.6
> 52493997348078&zoom=14&layers=B000F000F
> 
> All runways, taxiways, and apronareas has been taken from the 
> official EKCH ADC plate, similar data for airports in other 
> countries should be available freely from the civil aviation 
> authority governing the airspace in that country. IMHO the 
> data gained this way is better, since it is current, 
> official, and verifiable.

Naturally that data are preferred and it would be bad idea to
automatically update anything that exists already. But maybe making the
first insert for missing places.  By the way, X-Plane web page informs
that in the USA aerentical data are no more public for security reasons.


-Jukka-