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SAE J2735-Draft-Rev28 [issued: 11-10-08]
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23 -
This is an SAE Motor Vehicle Council draft document of the DSRC committee, subject to change.
SAE
Society of Automotive Engineers
SAP
Service Access Point
SC-104
Sub-Committee 104 of the RTCM
SCH
Service Channel
SDN
Need Define here
SDO
Standards Developing Organization
SME
Station Management Entity
SPAT
Signal Phase And Timing Message
SRS
Safety Restraint System
STA
Station
TC
Traction Control
TCIP
Transit Communications Interface Profiles
TCP
Transmission Control Protocol
TCS
Traction Control System
TMDD
Traffic Management Data Dictionary
UDP
User Datagram Protocol
UN
United Nations
UTC
Universal Coordinated Time (before you ask, see http://www.aldridge.com/utc.html)
WAVE
Wireless Access in Vehicular Environments
WME
WAVE Management Entity
WSIE
WAVE Service Information Element
WSM
WAVE Short Message
WSMP
WSM Protocol
XML
eXtensible Markup Language
4
The use of DSRC messages in Applications
This section contains introductory material about this edition of J2735, background information on the
rationale for the standard, and an introduction to the messages, which follow in Sections 5 to Section 9.
4.1
Introduction to DSRC Goals and Objectives
Public sector organizations throughout the world have identified the need to reduce fatalities and serious
injuries that result from vehicle crashes, as well as the need to reduce traffic congestion. The use of
wireless and computer technologies in vehicles, and on the roadway infrastructure, have been identified as
promising areas to provide solutions for these needs. Intelligent Transportation System (ITS) planning in
many regions of the world has therefore become focused on supporting applications that utilize a common
platform to address three priorities: