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SAE J2735-Draft-Rev29 [issued: 12-11-08]
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This is an SAE Motor Vehicle Council draft document of the DSRC committee, subject to change.
IEEE Std P1609.2 (VT/ITS) Standard for Wireless Access in Vehicular Environments - Security Services
for Applications and Management Messages
IEEE Std P1609.3 (VT/ITS) Standard for Wireless Access in Vehicular Environments (WAVE) -
Networking Services
IEEE Std P1609.4 (VT/ITS) Standard for Wireless Access in Vehicular Environments (WAVE) - Multi-
Channel Operations
IEEE Std P802.11p (C/LM) Amendment to Standard [for] Information Technology – Telecommunications
and information exchange between systems – Local and Metropolitan networks – specific requirements –
Part II: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) specifications: Wireless
Access in Vehicular Environments
3. Terms and definitions
For the purposes of this standard, the following definitions, abbreviations and acronyms apply.
3.1 Definitions
For the purposes of this standard, the following definitions shall apply.
3.1 actuated operation: A type of traffic control signal operation in which some or all signal phases are
operated on the basis of actuation, e.g. detector inputs. A signal without any actuation runs on either fixed
time or time of day operation. A signal may be semi-actuated as well.
3.2 airlink: A radio frequency communication interface, such as that defined by WAVE.
3.3 application class identifier (ACID): A code that identifies a class of application, as defined by the
IEEE.
3.4 application context mark (ACM): A code identifying a specific instance of an application (as defined
in IEEE documents).
3.5 application-specific data dictionary: A data dictionary specific to a particular implementation of an
ITS application. Local deployments which use DSRC (or other message sets) may often select a subset of
the defined messages meeting their specific needs and create an application-specific data dictionary for that
deployment.
3.6 approach: All lanes of traffic moving towards an intersection or a midblock location from one
direction, including any adjacent parking lane(s). In the context of this standard an approach is a arbitrary
collection of lanes used in the flow of traffic preceding to an intersection or a midblock location. An
approach is typically identified by its general flow, i.e. “the east-bound approach”. In this standard an