ANN: RDF Sample, ICAO Airport Codes

David Megginson david at
Fri Jul 30 16:12:01 BST 1999

I have placed a medium-sized RDF sample online at the following

This document is 811,388 bytes long, and contains entries for 2,963
international airports.  These are taken from
(not-entirely-consistently-formatted) text file available at

and the information is sometimes pretty spotty.  Soon, I'd like to add 
RDF versions of a few METAR (surface weather observation) files
pointing into this one, so that people can experiment with relations
among multiple RDF documents.


Here are sample records for the four airports I'll happen to be flying
through next week:

<apt:Airport rdf:about="">
  <apt:name>Ottawa Int'L. Ont., Canada </apt:name>

<apt:Airport rdf:about="">
  <apt:name>New York, La Guardia Airport, NY, United States </apt:name>

<apt:Airport rdf:about="">
  <apt:name>Chicago, Chicago-O'Hare International Airport, IL, United States </apt:name>

<apt:Airport rdf:about="">
  <apt:name>San Francisco, San Francisco International Airport, CA, United States </apt:name>

RDF/Namespace Information

This document uses an experimental Namespace with the following URI:

This namespace contains one RDF class, "Airport", and five RDF
properties, all of which are literals:

  The four-letter ICAO code for the airport, such as "KLAX".

  The name and location of the airport.

  The three-letter IATA code for the airport, such as "LAX", if known.

  The approximate latitude of the airport, if known.

  The approximate longitude of the airport, if known.

  The approximate elevation of the airport, if known.

Future Plans

In real life, the last three properties would probably be specified
separately for each runway.  Perhaps some day I'll make this more
interesting, and add ATIS frequencies, better lat/lon information, ILS
approach information, etc.

All the best,


David Megginson                 david at

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