IETF - Prefix Elements for Road and House Numbers in PIDF-LO

[Ram Kumar <kumar.sydney@gmail.com>]

Prefix Elements for Road and House Numbers in PIDF-LO
Brian Rosen (ed), IETF Internet Draft

A first public draft for "Prefix Elements for Road and House Numbers
in PIDF-LO" has been published as an IETF I-D. The IETF XML-based
"Presence Information Data Format (PIDF)" specification was designed
for communicating privacy-sensitive presence information and which has
similar properties. PIDF-LO extends PIDF by describing an object format
for carrying geographical information on the Internet.

In RFC 4119 ("A Presence-based GEOPRIV Location Object Format") one
can define a PIDF for 123 Main Street but not 123 Boulevard Coranado.
There is an STS CAtype for a suffix, but no corresponding prefix.
RFC 5139 ("Revised Civic Location Format for Presence Information Data
Format Location Object - PIDF-LO") added PRM Premodifier and POM
Postmodifier, but those are not suitable for the purpose. Similarly,
one can express 123B Main, but not H123 Main. Although one can include
such letters in the house number, most addressing authorities keep the
number numeric only to facilitate sorting, and have prefix and suffix
fields for alphanumerics that appear in front of or following the numeric
house number. To remedy this situation, new CAtypes are required: STP
for a street (road) prefix, and HNP for a house number prefix.

http://xml.coverpages.org/draft-rosen-geopriv-prefix-00.txt
See also the IETF Geographic Location/Privacy (GEOPRIV) Working Group Status Pages: http://tools.ietf.org/wg/geopriv/