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purpose of the 15.4p Task Group is to establish an amendment to the
existing 802.15.4 standard to expand its use for sensor, control and
information transfer applications specific to rail and rail transit.Current
the United States, the US Congress in 2008 enacted a law to improve
rail safety, the Rail Safety Improvement Act of 2008, which mandates
the use of Positive Train Control (PTC) for most rail and rail transit
has four primary components
deployed on the locomotive/train
points deployed at or near trackside that are connected to systems
operating at a remotely located control center
bi-directional wireless data link that links all these elements. The
work of this group is expected to be very applicable to this wireless
Project Authorization Request (PAR) document
was approved by IEEE NesCom in March 2012. The scope of the PAR is
broad enough to encourage the use of 15.4 for freight, high-speed
passenger rail , commuter and light rail, subway and elevated systems.
its various incarnations, the group has been meeting via a weekly
since early October, while growing our membership and bringing in more
experts on rail transportation, radio technology, regulation, security and
propagation. The participation currently includes around 90 people from
over 50 different entities, including US federal regulatory agencies and foreign regulatory entities and academic institutions,
US Class 1 freight railroads, Amtrak, major system integrators,
OEMs, silicon vendors, test hourse, and industry consultancies.
All presentations and documents are posted on IEEE Mentor. When searching for documents, make sure to look under IGptc and SGptc, as well as 15.4p. The Call for Applications
was issued in December 2011 and contributions in response to that
document continue to be presented. The effort attained Task Group
status as of the beginning of April 2012. The Task Group remains on
schedule to establish a baseline proposal by the November 2012 Plenary.
by attending our telecons. Our telecons are on Wednesdays approximately
every week and are currently scheduled for 0800 Pacific / 0900 Mountain
/ 1000 Central / 1100 Eastern and 1500 UK / 1600 CET.
The draft agenda, conference number and access codes will be sent out
reflector at least 24 hours before the meeting time.This week is the
IEEE 802 Interim meeting at Atlanta, GA (USA), so there will be no
meeting on 16 May. Conference calls will resume on 23 May.
802.15.4p PTC Task Group conducts their discussions on the
STDS-802-15-4p Public Mailing List. You can learn how to subscribe to
the 802.15.4p PTC reflector by pointing your browser here.
are in the
process of collecting submissions that provide a
good overview about the state-of-the-art in PTC efforts globally.
Document submittal is simple. If you choose to grow our library of
knowledge, please do so using the standard IEEE 802 templates. Please note
that submission of copyrighted, confidential or proprietary material is
prohibited. Double check for "Confidential" or "Proprietary"
boilerplate before you push the "upload" button!
presentation (IEEE 802.11-11/1032r1) was made
at both the IEEE 802.11 WNG and IEEE 802.15 WNG sessions at San
Francisco in July 2011, and the establishment of an Interest Group was
approved by the IEEE
802.15 WG during that
fit with IEEE 802.15 is excellent; the released standards
and in-process work that IEEE 802.15 has done to date have addressed in
part many of the requirements for a wireless link for PTC operating in
spectrum including, but not limited to, the 216-222 MHz band. At the
Atlanta Plenary in November 2011,
promotion to a full Study Group was approved. The Study Group's task
was to draft the PAR and Five Criteria documents, necessary to attain
Task Group status. The extablishment of the Task Group 15.4p was
completed in March 2012, and the TG is working on the development of a
future standard for the wireless data link
A liaison relationship has been established with the Rail Transportation Standards Committee of the IEEE
Vehicular Technology Society.
A presentation (15-12-0083-01-0ptc) was made in January 2012 to the
Committee (WCC) of the Association of American Railroads (AAR) to
inform that group of our work and to encourage participation. Another
informative presentation will be made at the upcoming PTC World
Congress event in Orlando, FL (USA), on the 1st of March. We
participation from the broad rail
transportation communications industry.
Who to contact with questions
- Chair: Jon Adams (Lilee Systems)
- Vice Chair: Dr. Alan Rao (US DOT Volpe Center)
- Secretary: TBD
- Liaison to IEEE VTS: Jon Adams (Lilee Systems)
The Institute of Electrical and Electronics