Description / Abstract:
This standard provides a table of textual messages meeting the
requirements for expressing "International Traveler Information
Systems" (ITIS) phrases commonly used in the ITS industry. The
tables provided herein follow the rules of SAE J2540 and therefore
allow a local representation in various different languages, media
expressions etc... to allow true international use of these
phrases. The phrases are predominantly intended for use in the
description of traffic related events of interest to travelers and
other traffic practitioners. Other phrases exit for other specific
specialty areas of ITS, and all such phrases follow a set of
encoding and decoding rules outlined in SAE J2540 to ensure that
the use of these phrases in messages remain interoperable between
disparate types of user equipment.
Implementers are cautioned to obtain the most recent set of
tables by means of the ITS data registry, a process which involves
the SAE and other standards setting organizations and which is
intended to maintain and enhance the level of harmonization among
ITS standards set by each of the organizations.
This standard SHALL define the normative index values to be used
to provide phrases needed by ITS practitioners. This standard
provides non-normative textual phrases which MAY be used by
implementers to ensure intelligible results. This standard SHALL
follow the formats and rules established in SAE J2540 in the
expressions, manipulations, and use of such tables.
It should be pointed out that within the rules established by
this standard a variety of final tables are all considered
"compliant" with the standard, and may vary as fits the needs of
implementers.