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SAE J2735-Draft-Rev26 [issued: 09-18-08]
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This is an SAE Motor Vehicle Council draft document of the DSRC committee, subject to change.
<xs:element name="cargoWeight" type="CargoWeight" />
<xs:element name="steeringAxleTemperature" type="SteeringAxleTemperature" />
<xs:element name="driveAxleLocation" type="DriveAxleLocation" />
<xs:element name="driveAxleLiftAirPressure" type="DriveAxleLiftAirPressure" />
<xs:element name="driveAxleTemperature" type="DriveAxleTemperature" />
<xs:element name="driveAxleLubePressure" type="DriveAxleLubePressure" />
<xs:element name="steeringAxleLubePressure" type="SteeringAxleLubePressure" />
</xs:sequence>
</xs:complexType>
In addition, this item may be used by data structures in other ITS standards.
6.28 Data Frame: DF_MovementState
Use: The MovementState data frame is used to convey various information about the current signal state
of a designated collection of one or more lanes of a common type. Note that lanes types supported include
both motorized vehicle lanes as well as pedestrian lanes and dedicated train and transit lanes. Of the
reported data elements, the time to change (the time remaining in the current state) is often the most of
value. Lanes with a common state (typically adjacent sets of lanes in an approach) in a signalized
intersection will have individual lane values such as total vehicle counts, summed. It is used in the SPAT
message to convey every movement in the approaches in a given intersections so that vehicles, when
combined with certain map information, can determine the state of the signal lights.
ASN.1 Representation:
MovementState ::= SEQUENCE {
-- The MovementNumber is contained in the enclosing DF.
movementName DescriptiveName OPTIONAL,
-- uniquely defines movement by nzame
laneCnt INTEGER (1..255) OPTIONAL,
-- the number of lanes to follow
laneSet OCTET STRING (SIZE(1..127)),
-- each encoded as a: LaneNumber,
-- the collection of lanes, by num,
-- to which this state data applies
-- For the current movement State, you may CHOICE one of the below:
currState SignalLightState OPTIONAL,
-- the state of a Motorised lane
pedState PedestrianSignalState OPTIONAL,
-- the state of a Pedestrian type lane
specialState SpecialSignalState OPTIONAL,
-- the state of a special type lane
-- such as a deadicatd train lane
timeToChange TimeToChange,
-- Roy suggests abs. time here to avoid latency issues
-- and not using a time-to-live value,
-- we could put out one UTC time, then offset from it?
-- Damlr still wants count-down timers, so kept as is
-- untill this is settled for good.
stateConfidence StateConfidence OPTIONAL,
-- Yellow phase time intervals
-- (used for motorised vehicle lanes and pedestrian lanes)
-- For the yellow Signal State, you may CHOICE one of the below:
yellState SignalLightState OPTIONAL,
-- the next state of a
-- Motorised lane
yellPedState PedestrianSignalState OPTIONAL,
-- the next state of a
-- Pedestrian type lane
yellTimeToChange TimeToChange OPTIONAL,
yellStateConfidence StateConfidence OPTIONAL,
-- below items are all optinal based on use and context
-- some are used only for ped lans
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