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# <a name="ETSI-ITS-DSRC"></a>ASN.1 module ETSI-ITS-DSRC
OID: _{ itu-t (0) identified-organization (4) etsi (0) itsDomain (5) wg1 (1) ts103301 (103301) dsrc (6) major-version-2 (2) minor-version-1 (1) }_
draft 001 of the ETSI-ITS-DSRC module for TS 103 301 V2.2.1 integrating:
initial revision based on ASN.1 files of [ISO TS 19091] and [SAE J2735]
* **[ETSI-ITS-CDD](ETSI-ITS-CDD.md)** *{ itu-t (0) identified-organization (4) etsi (0) itsDomain (5) wg1 (1) 102894 cdd (2) major-version-4 (4) minor-version-1 (1) } WITH SUCCESSORS*<br/>
* **[ETSI-ITS-DSRC-REGION](ETSI-ITS-DSRC-REGION.md)** *{ itu-t (0) identified-organization (4) etsi (0) itsDomain (5) wg1 (1) ts103301 (103301) dsrc (6) region (1) major-version-2 (2) minor-version-1 (1) } WITH SUCCESSORS*<br/>
### <a name="REG-EXT-ID-AND-TYPE"></a>REG-EXT-ID-AND-TYPE
This information object class is an abstract template to instantiate region extension.
* _id_ of type [**RegionId**](#RegionId) UNIQUE<br>
the identifier of the region type.
* Type<br>
the extension content
**Categories:** Basic Information
**Revision:** _V1.3.1_
```asn1
REG-EXT-ID-AND-TYPE ::= CLASS {
&id RegionId UNIQUE,
&Type
} WITH SYNTAX {&Type IDENTIFIED BY &id}
```
### <a name="RegionalExtension"></a>RegionalExtension
This DF represents a Region extension preceded by its type identifier and a lenght indicator.
It shall include the following components:
* _regionId_ of type [**REG-EXT-ID-AND-TYPE**](ETSI-ITS-DSRC.md#REG-EXT-ID-AND-TYPE) .&id( {Set} )<br>
* _regExtValue_ of type [**REG-EXT-ID-AND-TYPE**](ETSI-ITS-DSRC.md#REG-EXT-ID-AND-TYPE) .&Type( {Set}{@regionId} )<br>
the extension content consistent with the region type.
**Categories:** Basic Information
**Revision:** _V1.3.1_
```asn1
RegionalExtension {REG-EXT-ID-AND-TYPE : Set} ::= SEQUENCE {
regionId REG-EXT-ID-AND-TYPE.&id( {Set} ),
regExtValue REG-EXT-ID-AND-TYPE.&Type( {Set}{@regionId} )
}
```
### <a name="MapData"></a>MapData
This DF is used to convey many types of geographic road information. At the current time its primary
use is to convey one or more intersection lane geometry maps within a single message. The map message content
includes such items as complex intersection descriptions, road segment descriptions, high speed curve outlines (used in
curve safety messages), and segments of roadway (used in some safety applications). A given single MapData message
may convey descriptions of one or more geographic areas or intersections. The contents of this message involve defining
the details of indexing systems that are in turn used by other messages to relate additional information (for example, the
signal phase and timing via the SPAT message) to events at specific geographic locations on the roadway.
Values:
* _timeStamp_ of type [**MinuteOfTheYear**](#MinuteOfTheYear) OPTIONAL<br>
* _msgIssueRevision_ of type [**MsgCount**](#MsgCount) <br>
The MapData revision is defined by the data element `revision` for each intersection
geometry (see [ISO TS 19091] G.8.2.4.1). Therefore, an additional revision indication of the overall
MapData message is not used in this profile. It shall be set to "0" for this profile.
* _layerType_ of type [**LayerType**](#LayerType) OPTIONAL<br>
There is no need to additionally identify the topological content by an additional identifier. The ASN.1
definition of the data frames `intersections` and `roadSegments` are clearly defined and need no
additional identifier. Therefore, this optional data element shall not be used in this profile.
* _layerID_ of type [**LayerID**](#LayerID) OPTIONAL<br>
This profile extends the purpose of the `layerID` data element as defined in SAE J2735 as follows: For
large intersections, the length of a MapData description may exceed the maximum data length of the
communication message. Therefore, a fragmentation of the MapData message (at application layer) in
two or more MapData fragments may be executed. If no MapData fragmentation is needed, the `layerID`
shall not be used. For more details, see the definition of the data element [**LayerID**](#LayerID).
* _intersections_ of type [**IntersectionGeometryList**](#IntersectionGeometryList) OPTIONAL<br>
* _roadSegments_ of type [**RoadSegmentList**](#RoadSegmentList) OPTIONAL<br>
* _dataParameters_ of type [**DataParameters**](#DataParameters) OPTIONAL<br>
* _restrictionList_ of type [**RestrictionClassList**](#RestrictionClassList) OPTIONAL<br>
Any restriction ID tables which have established for these map entries
* _regional_ of type **SEQUENCE** (SIZE(1..4)) OF<br>
This profile extends the MapData message with the regional data element [**MapData-addGrpC**](ETSI-ITS-DSRC-AddGrpC.md#MapData-addGrpC)
* **RegionalExtension** {{Reg-MapData}} OPTIONAL<br>
**Categories:** Road topology information
**Revision:** _V1.3.1_
```asn1
MapData ::= SEQUENCE {
timeStamp MinuteOfTheYear OPTIONAL,
msgIssueRevision MsgCount,
layerType LayerType OPTIONAL,
layerID LayerID OPTIONAL,
intersections IntersectionGeometryList OPTIONAL,
roadSegments RoadSegmentList OPTIONAL,
dataParameters DataParameters OPTIONAL,
restrictionList RestrictionClassList OPTIONAL,
regional SEQUENCE (SIZE(1..4)) OF
RegionalExtension {{Reg-MapData}} OPTIONAL,
...
}
```
### <a name="RTCMcorrections"></a>RTCMcorrections
This DF is used to encapsulate RTCM differential corrections for GPS and other radio
navigation signals as defined by the RTCM (Radio Technical Commission For Maritime Services) special committee
number 104 in its various standards. Here, in the work of DSRC, these messages are "wrapped" for transport on the
DSRC media, and then can be re-constructed back into the final expected formats defined by the RTCM standard and
used directly by various positioning systems to increase the absolute and relative accuracy estimates produced.
Values:
* _msgCnt_ of type [**MsgCount**](#MsgCount) <br>
* _rev_ of type [**RTCM-Revision**](#RTCM-Revision) <br>
the specific edition of the standard that is being sent.
* _timeStamp_ of type [**MinuteOfTheYear**](#MinuteOfTheYear) OPTIONAL<br>
* _anchorPoint_ of type [**FullPositionVector**](#FullPositionVector) OPTIONAL<br>
* _rtcmHeader_ of type [**RTCMheader**](#RTCMheader) OPTIONAL<br>
* _msgs_ of type [**RTCMmessageList**](#RTCMmessageList) <br>
* _regional_ of type **SEQUENCE** (SIZE(1..4)) OF<br>
* **RegionalExtension** {{Reg-RTCMcorrections}} OPTIONAL<br>
**Categories:** Infrastructure information
**Revision:** _V1.3.1_
```asn1
RTCMcorrections ::= SEQUENCE {
msgCnt MsgCount,
rev RTCM-Revision,
timeStamp MinuteOfTheYear OPTIONAL,
anchorPoint FullPositionVector OPTIONAL,
rtcmHeader RTCMheader OPTIONAL,
msgs RTCMmessageList,
regional SEQUENCE (SIZE(1..4)) OF
RegionalExtension {{Reg-RTCMcorrections}} OPTIONAL,
...
}
```
### <a name="SPAT"></a>SPAT
This DF is used to convey the current status of one or more signalized
intersections. Along with the MapData message (which describes a full geometric layout of an intersection) the
receiver of this message can determine the state of the signal phasing and when the next expected phase will occur.
The SPAT message sends the current movement state of each active phase in the system as needed (such as values of
what states are active and values at what time a state has begun/does begin earliest, is expected to begin most likely and
will end latest). The state of inactive movements is not normally transmitted. Movements are mapped to specific
approaches and connections of ingress to egress lanes and by use of the SignalGroupID in the MapData message
The current signal preemption and priority status values (when present or active) are also sent. A more complete
summary of any pending priority or preemption events can be found in the Signal Status message.
Values:
* _timeStamp_ of type [**MinuteOfTheYear**](#MinuteOfTheYear) OPTIONAL<br>
* _name_ of type [**DescriptiveName**](#DescriptiveName) OPTIONAL<br>
human readable name for this collection. to be used only in debug mode.
* _intersections_ of type [**IntersectionStateList**](#IntersectionStateList) <br>
* _regional_ of type **SEQUENCE** (SIZE(1..4)) OF<br>
**Categories:** Infrastructure information
**Revision:** _V1.3.1_
```asn1
SPAT ::= SEQUENCE {
timeStamp MinuteOfTheYear OPTIONAL,
name DescriptiveName OPTIONAL,
intersections IntersectionStateList,
regional SEQUENCE (SIZE(1..4)) OF
RegionalExtension {{Reg-SPAT}} OPTIONAL,
...
}
```
### <a name="SignalRequestMessage"></a>SignalRequestMessage
This DF is a message sent by a DSRC equipped entity (such as a vehicle) to the RSU in a
signalized intersection. It is used for either a priority signal request or a preemption signal request depending on the way
each request is set. Each request defines a path through the intersection which is desired in terms of lanes and
approaches to be used. Each request can also contain the time of arrival and the expected duration of the service.
Multiple requests to multiple intersections are supported. The requestor identifies itself in various ways (using methods
supported by the @refRequestorDescription data frame), and its current speed, heading and location can be placed in this
structure as well. The specific request for service is typically based on previously decoding and examining the list of lanes
and approaches for that intersection (sent in MAP messages). The outcome of all of the pending requests to a signal can
be found in the Signal Status Message (SSM), and may be reflected in the SPAT message contents if successful.
Values:
* _timeStamp_ of type [**MinuteOfTheYear**](#MinuteOfTheYear) OPTIONAL<br>
* _sequenceNumber_ of type [**MsgCount**](#MsgCount) OPTIONAL<br>
* _requests_ of type [**SignalRequestList**](#SignalRequestList) OPTIONAL<br>
Request Data for one or more signalized intersections that support SRM dialogs
* _requestor_ of type [**RequestorDescription**](#RequestorDescription) <br>
Requesting Device and other User Data contains vehicle ID (if from a vehicle) as well as type data and current
position and may contain additional transit data
* _regional_ of type **SEQUENCE** (SIZE(1..4)) OF<br>
* **RegionalExtension** {{Reg-SignalRequestMessage}} OPTIONAL<br>
**Categories:** Infrastructure information
**Revision:** _V1.3.1_
```asn1
SignalRequestMessage ::= SEQUENCE {
timeStamp MinuteOfTheYear OPTIONAL,
second DSecond,
sequenceNumber MsgCount OPTIONAL,
requests SignalRequestList OPTIONAL,
requestor RequestorDescription,
regional SEQUENCE (SIZE(1..4)) OF
RegionalExtension {{Reg-SignalRequestMessage}} OPTIONAL,
...
}
```
### <a name="SignalStatusMessage"></a>SignalStatusMessage
This DF is a message sent by an RSU in a signalized intersection. It is used to relate the current
status of the signal and the collection of pending or active preemption or priority requests acknowledged by the controller.
It is also used to send information about preemption or priority requests which were denied. This in turn allows a dialog
acknowledgment mechanism between any requester and the signal controller. The data contained in this message allows
other users to determine their "ranking" for any request they have made as well as to see the currently active events.
When there have been no recently received requests for service messages, this message may not be sent. While the
outcome of all pending requests to a signal can be found in the Signal Status Message, the current active event (if any)
will be reflected in the SPAT message contents.
Values:
* _timeStamp_ of type [**MinuteOfTheYear**](#MinuteOfTheYear) OPTIONAL<br>
* _sequenceNumber_ of type [**MsgCount**](#MsgCount) OPTIONAL<br>
* _status_ of type [**SignalStatusList**](#SignalStatusList) <br>
Status Data for one of more signalized intersections.
* _regional_ of type **SEQUENCE** (SIZE(1..4)) OF<br>
* **RegionalExtension** {{Reg-SignalStatusMessage}} OPTIONAL<br>
**Categories:** Infrastructure information
**Revision:** _V1.3.1_
```asn1
SignalStatusMessage ::= SEQUENCE {
timeStamp MinuteOfTheYear OPTIONAL,
second DSecond,
sequenceNumber MsgCount OPTIONAL,
status SignalStatusList,
regional SEQUENCE (SIZE(1..4)) OF
RegionalExtension {{Reg-SignalStatusMessage}} OPTIONAL,
...
}
```
### <a name="AdvisorySpeed"></a>AdvisorySpeed
This DF is used to convey a recommended traveling approach speed to an intersection
from the message issuer to various travelers and vehicle types. Besides support for various eco-driving applications, this
allows transmitting recommended speeds for specialty vehicles such as transit buses.
Values:
* _type_ of type [**AdvisorySpeedType**](#AdvisorySpeedType) <br>
* _speed_ of type [**SpeedAdvice**](#SpeedAdvice) OPTIONAL<br>
See [**SpeedAdvice**](#SpeedAdvice) for converting and translating speed expressed in mph into units of m/s.
This element is optional ONLY when superceded by the presence of a regional speed element found in Reg-AdvisorySpeed entry
* _confidence_ of type [**SpeedConfidenceDSRC**](#SpeedConfidenceDSRC) OPTIONAL<br>
* _distance_ of type [**ZoneLength**](#ZoneLength) OPTIONAL<br>
The distance indicates the region for which the advised speed is recommended, it is specified upstream from the stop bar
along the connected egressing lane. Unit = 1 meter
* _class_ of type [**RestrictionClassID**](#RestrictionClassID) OPTIONAL<br>
the vehicle types to which it applies when absent, the AdvisorySpeed applies to all motor vehicle types
* **RegionalExtension** {{Reg-AdvisorySpeed}} OPTIONAL<br>
**Categories:** Infrastructure information
**Revision:** _V1.3.1_
```asn1
AdvisorySpeed ::= SEQUENCE {
type AdvisorySpeedType,
speed SpeedAdvice OPTIONAL,
confidence SpeedConfidenceDSRC OPTIONAL,
distance ZoneLength OPTIONAL,
class RestrictionClassID OPTIONAL,
regional SEQUENCE (SIZE(1..4)) OF
RegionalExtension {{Reg-AdvisorySpeed}} OPTIONAL,
...
}
```
### <a name="AdvisorySpeedList"></a>AdvisorySpeedList
This DF consists of a list of [**AdvisorySpeed**](#AdvisorySpeed) entries.
**Categories:** Infrastructure information
**Revision:** _V1.3.1_
```asn1
AdvisorySpeedList ::= SEQUENCE (SIZE(1..16)) OF AdvisorySpeed
```
### <a name="AntennaOffsetSet"></a>AntennaOffsetSet
This DF is a collection of three offset values in an orthogonal coordinate system
which describe how far the electrical phase center of an antenna is in each axis from a nearby known anchor point in units of 1 cm.
When the antenna being described is on a vehicle, the signed offset shall be in the coordinate system defined in section 11.4.
* _antOffsetX_ of type [**Offset-B12**](#Offset-B12) <br>
* _antOffsetY_ of type [**Offset-B09**](#Offset-B09) <br>
* _antOffsetZ_ of type [**Offset-B10**](#Offset-B10) <br>
a range of +- 5.11 meters.
**Categories:** Infrastructure information
**Revision:** _V1.3.1_
```asn1
AntennaOffsetSet ::= SEQUENCE {
antOffsetX Offset-B12,
antOffsetY Offset-B09,
antOffsetZ Offset-B10
```
### <a name="ComputedLane"></a>ComputedLane
This DE is used to contain information needed to compute one lane from another
(hence the name). This concept is used purely as a means of saving size in the message payload. The new lane is
expressed as an X,Y offset from the first point of the source lane. It can be optionally rotated and scaled. Any attribute
information found within the node of the source lane list cannot be changed and must be reused.
Values:
* _referenceLaneId_ of type [**LaneID**](ETSI-ITS-DSRC.md#LaneID) <br>
the lane ID upon which this computed lane will be based Lane Offset in X and Y direction
* _offsetXaxis_ of type [**CHOICE**](#CHOICE) {
small DrivenLineOffsetSm,
large DrivenLineOffsetLg
}<br>
A path X offset value for translations of the path's points when creating translated lanes.
* _offsetYaxis_ of type [**CHOICE**](#CHOICE) {
small DrivenLineOffsetSm,
large DrivenLineOffsetLg
}<br>
The values found in the reference lane are all offset based on the X and Y values from
the coordinates of the reference lane's initial path point.
* _rotateXY_ of type [**Angle**](#Angle) OPTIONAL<br>
A path rotation value for the entire lane
Observe that this rotates the existing orientation
of the referenced lane, it does not replace it.
Rotation occurs about the initial path point.
* _scaleXaxis_ of type [**Scale-B12**](#Scale-B12) OPTIONAL<br>
value for translations or zooming of the path's points. The values found in the reference lane
* _scaleYaxis_ of type [**Scale-B12**](#Scale-B12) OPTIONAL<br>
are all expanded or contracted based on the X and Y and width values from the coordinates of the reference lane's initial path point.
The Z axis remains untouched.
* _regional_ of type **SEQUENCE** (SIZE(1..4)) OF<br>
* **RegionalExtension** {{Reg-ComputedLane}} OPTIONAL<br>
**Categories:** Infrastructure information
**Revision:** _V1.3.1_
>>>
NOTE: The specified transformation shall be applied to the reference lane without any intermediary loss of precision
(truncation). The order of the transformations shall be: the East-West and North-South offsets, the scaling factors, and
finally the rotation.
>>>
```asn1
ComputedLane ::= SEQUENCE {
referenceLaneId LaneID,
offsetXaxis CHOICE {
small DrivenLineOffsetSm,
large DrivenLineOffsetLg
},
offsetYaxis CHOICE {
small DrivenLineOffsetSm,
large DrivenLineOffsetLg
},
rotateXY Angle OPTIONAL,
scaleXaxis Scale-B12 OPTIONAL,
scaleYaxis Scale-B12 OPTIONAL,
regional SEQUENCE (SIZE(1..4)) OF
RegionalExtension {{Reg-ComputedLane}} OPTIONAL,
...
}
```
### <a name="ConnectsToList"></a>ConnectsToList
This DF is used in the generic lane descriptions to provide a sequence of other defined
lanes to which each lane connects beyond its stop point. See the Connection data frame entry for details. Note that this
data frame is not used in some lane object types.
**Categories:** Infrastructure information
**Revision:** _V1.3.1_
>>>
NOTE: The assignment of lanes in the Connection structure shall start with the leftmost lane from the vehicle
perspective (the u-turn lane in some cases) followed by subsequent lanes in a clockwise assignment order. Therefore, the
rightmost lane to which this lane connects would always be listed last. Note that this order is observed regardless of which
side of the road vehicles use. If this structure is used in the lane description, then all valid lanes to which the subject lane
connects shall be listed.
>>>
```asn1
ConnectsToList ::= SEQUENCE (SIZE(1..16)) OF Connection
```
### <a name="ConnectingLane"></a>ConnectingLane
The data concept ties a single lane to a single maneuver needed to reach it from another lane.
It is typically used to connect the allowed maneuver from the end of a lane to the outbound lane so that these can be
mapped to the SPAT message to which both lanes apply.
* _lane_ of type [**LaneID**](ETSI-ITS-DSRC.md#LaneID) <br>
* _maneuver_ of type [**AllowedManeuvers**](#AllowedManeuvers) OPTIONAL<br>
This data element allows only the description of a subset of possible manoeuvres and therefore
represents an incomplete list of possible travel directions. The connecting `lane` data element gives the
exact information about the manoeuvre relation from ingress to egress lane. Therefore the "maneuver"
data element may be used only additionally if the travel direction of the manoeuvre is unanmbigoulsy
represented (e.g. left, right, straight, etc.).
**Categories:** Infrastructure information
**Revision:** _V1.3.1_
```asn1
ConnectingLane ::= SEQUENCE {
lane LaneID,
maneuver AllowedManeuvers OPTIONAL
}
```
### <a name="Connection"></a>Connection
This DF is used to combine/connect multiple physical lanes (i.e. within intersections or road
segments). For signalized movements, the `connectsTo` data frame defines e.g. the relation between
ingress and egress lanes within an intersection. It describes the allowed manoeuvres and includes the
link (`signalGroup` identifier) between the [**MapData**](#MapData) and the [**PAT**](#PAT) message. The data frame is also used
to describe the relation of lanes within a non signalized intersection (e.g. ingress lanes which are
bypassing the conflict area and ending in an egress lane without signalization). Within a road segment,
it is used to combine two or multiple physical lanes into a single lane object.
* _connectingLane_ of type [**ConnectingLane**](#ConnectingLane) <br>
* _remoteIntersection_ of type [**IntersectionReferenceID**](#IntersectionReferenceID) OPTIONAL<br>
When the data element `remoteIntersection` is used, it indicates
that the connecting lane belongs to another intersection.
(see clause [ISO TS 19091] G.9.1 for further explainations).
* _signalGroup_ of type [**SignalGroupID**](ETSI-ITS-DSRC.md#SignalGroupID) OPTIONAL<br>
* _userClass_ of type [**RestrictionClassID**](#RestrictionClassID) OPTIONAL<br>
* _connectionID_ of type [**LaneConnectionID**](ETSI-ITS-DSRC.md#LaneConnectionID) OPTIONAL<br>
**Categories:** Infrastructure information
**Revision:** _V1.3.1_
```asn1
Connection ::= SEQUENCE {
connectingLane ConnectingLane,
remoteIntersection IntersectionReferenceID OPTIONAL,
signalGroup SignalGroupID OPTIONAL,
userClass RestrictionClassID OPTIONAL,
connectionID LaneConnectionID OPTIONAL
}
```
### <a name="ConnectionManeuverAssist"></a>ConnectionManeuverAssist
This DF contains information about the the dynamic flow of traffic for the lane(s)
and maneuvers in question (as determined by the [**LaneConnectionID**](ETSI-ITS-DSRC.md#LaneConnectionID)). Note that this information can be sent regarding
any lane-to-lane movement; it need not be limited to the lanes with active (non-red) phases when sent.
Values:
* _connectionID_ of type [**LaneConnectionID**](ETSI-ITS-DSRC.md#LaneConnectionID) <br>
the common connectionID used by all lanes to which this data applies
(this value traces to ConnectsTo entries in lanes)
* _queueLength_ of type [**ZoneLength**](#ZoneLength) OPTIONAL<br>
The distance from the stop line to the back edge of the last vehicle in the queue,
as measured along the lane center line. (Unit = 1 meter, 0 = no queue)
* _availableStorageLength_ of type [**ZoneLength**](#ZoneLength) OPTIONAL<br>
Distance (e.g. beginning from the downstream stop-line up to a given distance) with a high
probability for successfully executing the connecting maneuver between the two lanes
Used for enhancing the awareness of vehicles to anticipate if they can pass the stop line
of the lane. Used for optimizing the green wave, due to knowledge of vehicles waiting in front
The element nextTime in [**TimeChangeDetails**](#TimeChangeDetails) in the containing data frame contains the next
timemark at which an active phase is expected, a form of storage flush interval.
* _waitOnStop_ of type [**WaitOnStopline**](#WaitOnStopline) OPTIONAL<br>
If true, the vehicles on this specific connecting
maneuver have to stop on the stop-line and not to enter the collision area
* _pedBicycleDetect_ of type [**PedestrianBicycleDetect**](#PedestrianBicycleDetect) OPTIONAL<br>
true if ANY ped or bicycles are detected crossing the above lanes. Set to false ONLY if there is a
high certainty that there are none present, otherwise element is not sent.
* _regional_ of type **SEQUENCE** (SIZE(1..4)) OF<br>
This data element includes additional data content [**ConnectionManeuverAssist-addGrpC**](ETSI-ITS-DSRC-AddGrpC.md#ConnectionManeuverAssist-addGrpC) defined in
this profile (see [ISO TS 19091] G.5.1.1). The content is included using the regional extension framework as defined in
* **RegionalExtension** {{Reg-ConnectionManeuverAssist}} OPTIONAL<br>
[**ConnectionManeuverAssist-addGrpC**](ETSI-ITS-DSRC-AddGrpC.md#ConnectionManeuverAssist-addGrpC) is used for position feedback to moving ITS stations for executing
safe manoeuvres and is included for this purpose in the data element "intersectionState"
**Categories:** Infrastructure information
**Revision:** _V1.3.1_
```asn1
ConnectionManeuverAssist ::= SEQUENCE {
connectionID LaneConnectionID,
queueLength ZoneLength OPTIONAL,
availableStorageLength ZoneLength OPTIONAL,
waitOnStop WaitOnStopline OPTIONAL,
pedBicycleDetect PedestrianBicycleDetect OPTIONAL,
regional SEQUENCE (SIZE(1..4)) OF
RegionalExtension {{Reg-ConnectionManeuverAssist}} OPTIONAL,
...
}
```
### <a name="DataParameters"></a>DataParameters
This DF is used to provide basic (static) information on how a map fragment was processed or determined.
* _processMethod_ of type [**IA5String**](#IA5String) (SIZE(1..255)) OPTIONAL<br>
* _processAgency_ of type [**IA5String**](#IA5String) (SIZE(1..255)) OPTIONAL<br>
* _lastCheckedDate_ of type [**IA5String**](#IA5String) (SIZE(1..255)) OPTIONAL<br>
* _geoidUsed_ of type [**IA5String**](#IA5String) (SIZE(1..255)) OPTIONAL<br>
**Categories:** Infrastructure information
**Revision:** _V1.3.1_
```asn1
DataParameters ::= SEQUENCE {
processMethod IA5String(SIZE(1..255)) OPTIONAL,
processAgency IA5String(SIZE(1..255)) OPTIONAL,
lastCheckedDate IA5String(SIZE(1..255)) OPTIONAL,
geoidUsed IA5String(SIZE(1..255)) OPTIONAL,
...
}
```
### <a name="DDateTime"></a>DDateTime
The DSRC style date is a compound value consisting of finite-length sequences of integers (not characters) of the
form: "yyyy, mm, dd, hh, mm, ss (sss+)" - as defined below.
* _year_ of type [**DYear**](#DYear) OPTIONAL<br>
* _month_ of type [**DMonth**](#DMonth) OPTIONAL<br>
* _day_ of type [**DDay**](#DDay) OPTIONAL<br>
* _hour_ of type [**DHour**](#DHour) OPTIONAL<br>
* _minute_ of type [**DMinute**](#DMinute) OPTIONAL<br>
* _second_ of type [**DSecond**](#DSecond) OPTIONAL<br>
* _offset_ of type [**DOffset**](#DOffset) OPTIONAL<br>
**Categories:** Infrastructure information
**Revision:** _V1.3.1_
>>>
NOTE: Note that some elements of this structure may not be sent when not needed. At least one element shall be present.
>>>
```asn1
DDateTime ::= SEQUENCE {
year DYear OPTIONAL,
month DMonth OPTIONAL,
day DDay OPTIONAL,
hour DHour OPTIONAL,
minute DMinute OPTIONAL,
second DSecond OPTIONAL,
offset DOffset OPTIONAL
```
### <a name="EnabledLaneList"></a>EnabledLaneList
This DF is a sequence of lane IDs for lane objects that are activated in the current map
configuration. These lanes, unlike most lanes, have their RevocableLane bit set to one (asserted). Such lanes are not
considered to be part of the current map unless they are in the Enabled Lane List. This concept is used to describe all the
possible regulatory states for a given physical lane. For example, it is not uncommon to enable or disable the ability to
make a right hand turn on red during different periods of a day. Another similar example would be a lane which is used for
driving during one period and where parking is allowed at another. Traditionally, this information is conveyed to the vehicle
driver by local signage. By using the Enabled Lane List data frame in conjunction with the RevocableLane bit and
constructing a separate lane object in the intersection map for each different configuration, a single unified map can be
developed and used.
Contents are the unique ID numbers for each lane object which is 'active' as part of the dynamic map contents.
**Categories:** Infrastructure information
**Revision:** _V1.3.1_
```asn1
EnabledLaneList ::= SEQUENCE (SIZE(1..16)) OF LaneID
```
### <a name="FullPositionVector"></a>FullPositionVector
A complete report of the vehicle's position, speed, and heading at an instant in time. Used in the probe vehicle
message (and elsewhere) as the initial position information. Often followed by other data frames that may provide offset
path data.
* _utcTime_ of type [**DDateTime**](#DDateTime) OPTIONAL<br>
* _long_ of type [**Longitude**](ETSI-ITS-CDD.md#Longitude) <br>
* _lat_ of type [**Latitude**](ETSI-ITS-CDD.md#Latitude) <br>
* _elevation_ of type [**Elevation**](#Elevation) OPTIONAL<br>
* _heading_ of type [**HeadingDSRC**](#HeadingDSRC) OPTIONAL<br>
* _speed_ of type [**TransmissionAndSpeed**](#TransmissionAndSpeed) OPTIONAL<br>
* _posAccuracy_ of type [**PositionalAccuracy**](#PositionalAccuracy) OPTIONAL<br>
* _timeConfidence_ of type [**TimeConfidence**](#TimeConfidence) OPTIONAL<br>
* _posConfidence_ of type [**PositionConfidenceSet**](#PositionConfidenceSet) OPTIONAL<br>
* _speedConfidence_ of type [**SpeedandHeadingandThrottleConfidence**](#SpeedandHeadingandThrottleConfidence) OPTIONAL<br>
**Categories:** Infrastructure information
**Revision:** _V1.3.1_
long Longitude,
lat Latitude,
elevation Elevation OPTIONAL,
heading HeadingDSRC OPTIONAL,
speed TransmissionAndSpeed OPTIONAL,
posAccuracy PositionalAccuracy OPTIONAL,
timeConfidence TimeConfidence OPTIONAL,
posConfidence PositionConfidenceSet OPTIONAL,
speedConfidence SpeedandHeadingandThrottleConfidence OPTIONAL,
...
```
### <a name="GenericLane"></a>GenericLane
This DF is used for all types of lanes, e.g. motorized vehicle lanes, crosswalks, medians. The
GenericLane describes the basic attribute information of the lane. The LaneID value for each lane is unique within an
intersection. One use for the LaneID is in the SPAT message, where a given signal or movement phase is mapped to a
set of applicable lanes using their respective LaneIDs. The NodeList2 data frame includes a sequence of offset points (or
node points) representing the center line path of the lane. As described in this standard, node points are sets of variable
sized delta orthogonal offsets from the prior point in the node path. (The initial point is offset from the LLH anchor point
used in the intersection.) Each node point may convey optional attribute data as well. The use of attributes is described
further in the Node definition, and in a later clause, but an example use would be to indicate a node point where the lane
width changes.
It should be noted that a "lane" is an abstract concept that can describe objects other than motorized vehicle lanes, and
that the generic lane structure (using features drawn from Japanese usage) also allows combining multiple physical lanes
into a single lane object. In addition, such lanes can describe connectivity points with other lanes beyond a single
intersection, extending such a lane description over multiple nearby physical intersections and side streets which
themselves may not be equipped or assigned an index number in the regional intersection numbering system. (See the
ConnectsTo entry for details) This has value when describing a broader service area in terms of the roadway network,
probably with less precision and detail.
Values:
* _laneID_ of type [**LaneID**](ETSI-ITS-DSRC.md#LaneID) <br>
* _name_ of type [**DescriptiveName**](#DescriptiveName) OPTIONAL<br>
often for debug use only but at times used to name ped crossings
* _ingressApproach_ of type [**ApproachID**](#ApproachID) OPTIONAL<br>
* _egressApproach_ of type [**ApproachID**](#ApproachID) OPTIONAL<br>
* _laneAttributes_ of type [**LaneAttributes**](#LaneAttributes) <br>
All Attribute information about the basic selected lane type
Directions of use, Geometric co-sharing and Type Specific Attributes
These Attributes are 'lane - global' that is, they are true for the entire length of the lane
* _maneuvers_ of type [**AllowedManeuvers**](#AllowedManeuvers) OPTIONAL<br>
This data element allows only the description of a subset of possible manoeuvres and therefore
reperesents an incomplete list of possible travel directions. The connecting `lane` data element gives
the exact information about the manoeuvre relation from ingress to egress lane. Therefore the
"maneuver" data element is used only additionally if the travel direction of the manoeuvre is
* _nodeList_ of type [**NodeListXY**](#NodeListXY) <br>
Lane spatial path information as well as various Attribute information along the node path
Attributes found here are more general and may come and go over the length of the lane.
* _connectsTo_ of type [**ConnectsToList**](#ConnectsToList) OPTIONAL<br>
a list of other lanes and their signal group IDs each connecting lane and its signal group ID
is given, therefore this element provides the information formerly in "signalGroups" in prior editions.
* _overlays_ of type [**OverlayLaneList**](#OverlayLaneList) OPTIONAL<br>
A list of any lanes which have spatial paths that overlay (run on top of, and not simply cross)
the path of this lane when used
* _regional_ of type **SEQUENCE** (SIZE(1..4)) OF<br>
* **RegionalExtension** {{Reg-GenericLane}} OPTIONAL<br>
**Categories:** Infrastructure information
**Revision:** _V1.3.1_
>>>
NOTE: The data elements `ingressApproach` and `egressApproach` are used for grouping lanes whin an
approach (e.g. lanes defined in travel direction towards the intersection, lanes in exiting direction and
cross walks). For a bidirectrional lane (e.g. bike lane) both dataelements are used for the same lane. The
integer value used for identifying the `ingressApproach` and the `egressAproach`, based on the
topology, may be e.g. the same for all lanes within an approach of an intersection.
>>>
```asn1
GenericLane ::= SEQUENCE {
laneID LaneID,
name DescriptiveName OPTIONAL,
ingressApproach ApproachID OPTIONAL,
egressApproach ApproachID OPTIONAL,
laneAttributes LaneAttributes,
maneuvers AllowedManeuvers OPTIONAL,
nodeList NodeListXY,
connectsTo ConnectsToList OPTIONAL,
overlays OverlayLaneList OPTIONAL,
regional SEQUENCE (SIZE(1..4)) OF
RegionalExtension {{Reg-GenericLane}} OPTIONAL,
...
}
```
### <a name="IntersectionAccessPoint"></a>IntersectionAccessPoint
This DF is used to specify the index of either a single approach or a single lane at
which a service is needed. This is used, for example, with the Signal Request Message (SRM) to indicate the inbound
and outbound points by which the requestor (such as a public safety vehicle) can traverse an intersection.
* _lane_ of type [**LaneID**](ETSI-ITS-DSRC.md#LaneID) <br>
* _approach_ of type [**ApproachID**](#ApproachID) <br>
the representation of the point as approach identifier.
* _connection_ of type [**LaneConnectionID**](ETSI-ITS-DSRC.md#LaneConnectionID) <br>
the representation of the point as connection identifier.
**Categories:** Infrastructure information
**Revision:** _V1.3.1_
>>>
NOTE: Note that the value of zero has a reserved meaning for these two indexing systems. In both cases, this value
is used to indicate the concept of "none" in use. When the value is of zero is used here, it implies the center of the
intersection itself. For example, requesting an outbound point of zero implies the requestor wishes to have the intersection
itself be the destination. Alternatively, an inbound value of zero implies the requestor is within the intersection itself and
wishes to depart for the outbound value provided. This special meaning for the value zero can be used in either the lane
or approach with the same results.
>>>
```asn1
IntersectionAccessPoint ::= CHOICE {
lane LaneID,
approach ApproachID,
connection LaneConnectionID,
...
}
```
### <a name="IntersectionGeometry"></a>IntersectionGeometry
A complete description of an intersection's roadway geometry and its allowed navigational paths (independent of
any additional regulatory restrictions that may apply over time or from user classification).
Values:
* _name_ of type [**DescriptiveName**](#DescriptiveName) OPTIONAL<br>
* _id_ of type [**IntersectionReferenceID**](#IntersectionReferenceID) <br>
A globally unique value set, consisting of a regionID and intersection ID assignment
* _revision_ of type [**MsgCount**](#MsgCount) <br>
This profile extends the purpose of the `revision` data element as defined in SAE J2735 as follows.
The revision data element is used to communicate the valid release of the intersection geometry
description. If there are no changes in the deployed intersection description, the same revision counter
is transmitted. Due to a revised deployment of the intersection description (e.g. new lane added, ID's
changed, etc.), the revision is increased by one. After revision equal to 127, the increment restarts by 0.
The intersection geometry and the signal phase and timing information is related each other. Therefore,
the revision of the intersection geometry of the MapData message shall be the same as the revision of
the intersection state of the SPAT (see data element `revision` of `DF_IntersectionState` in [ISO TS 19091] G.8.2.9)
* _refPoint_ of type [**Position3D**](#Position3D) <br>
The reference from which subsequent data points are offset until a new point is used.
* _laneWidth_ of type [**LaneWidth**](#LaneWidth) OPTIONAL<br>
Reference width used by all subsequent lanes unless a new width is given
* _speedLimits_ of type [**SpeedLimitList**](#SpeedLimitList) OPTIONAL<br>
Reference regulatory speed limits used by all subsequent lanes unless a new speed is given
* _laneSet_ of type [**LaneList**](#LaneList) <br>
Data about one or more lanes (all lane data is found here) Data describing how to use and request preemption and
priority services from this intersection (if supported)
* _preemptPriorityData_ of type [**PreemptPriorityList**](#PreemptPriorityList) OPTIONAL<br>
* _regional_ of type **SEQUENCE** (SIZE(1..4)) OF<br>
* **RegionalExtension** {{Reg-IntersectionGeometry}} OPTIONAL<br>
**Categories:** Infrastructure information
**Revision:** _V1.3.1_
```asn1
IntersectionGeometry ::= SEQUENCE {
name DescriptiveName OPTIONAL,
id IntersectionReferenceID,
revision MsgCount,
refPoint Position3D,
laneWidth LaneWidth OPTIONAL,
speedLimits SpeedLimitList OPTIONAL,
laneSet LaneList,
preemptPriorityData PreemptPriorityList OPTIONAL,
regional SEQUENCE (SIZE(1..4)) OF
RegionalExtension {{Reg-IntersectionGeometry}} OPTIONAL,
...
}
```
### <a name="IntersectionGeometryList"></a>IntersectionGeometryList
This DF consists of a list of IntersectionGeometry entries.
**Categories:** Infrastructure information
**Revision:** _V1.3.1_
```asn1
IntersectionGeometryList ::= SEQUENCE (SIZE(1..32)) OF IntersectionGeometry
```
### <a name="IntersectionReferenceID"></a>IntersectionReferenceID
This DF conveys the combination of an optional RoadRegulatorID and of an
IntersectionID that is unique within that region. When the RoadRegulatorID is present the IntersectionReferenceID is
guaranteed to be globally unique.
* _region_ of type [**RoadRegulatorID**](#RoadRegulatorID) OPTIONAL<br>
a globally unique regional assignment value typical assigned to a regional DOT authority
the value zero shall be used for testing needs
* _id_ of type [**IntersectionID**](ETSI-ITS-DSRC.md#IntersectionID) <br>
a unique mapping to the intersection in question within the above region of use
**Categories:** Infrastructure information
**Revision:** _V1.3.1_
>>>
NOTE: A fully qualified intersection consists of its regionally unique ID (the IntersectionID) and its region ID (the
RoadRegulatorID). Taken together these form a unique value which is never repeated.
>>>
```asn1
IntersectionReferenceID ::= SEQUENCE {
region RoadRegulatorID OPTIONAL,
id IntersectionID
}
```
### <a name="IntersectionState"></a>IntersectionState
This DF is used to convey all the SPAT information for a single intersection. Both current
Values:
* _name_ of type [**DescriptiveName**](#DescriptiveName) OPTIONAL<br>
human readable name for intersection to be used only in debug mode
* _id_ of type [**IntersectionReferenceID**](#IntersectionReferenceID) <br>
A globally unique value set, consisting of a regionID and intersection ID assignment
provides a unique mapping to the intersection MAP in question which provides complete location
and approach/move/lane data
* _revision_ of type [**MsgCount**](#MsgCount) <br>
The data element `revision` is used to communicate the actual valid release of the intersection
description. If there are no changes in the deployed intersection description, almost the same revision
counter is transmitted. Due to a revised deployment of the intersection description (e.g. introduction of
additional signal state element), the revision is increased by one. After revision equal to 127, the
increment leads to 0 (due to the element range).
The intersection state and the intersection geometry is related to each other. Therefore, the revision of
the intersection state shall be the same as the revision of the intersection geometry (see the data
element `revision` of `DF_IntersectionGeometry` in [ISO TS 19091] G.8.2.6).
* _status_ of type [**IntersectionStatusObject**](#IntersectionStatusObject) <br>
* _moy_ of type [**MinuteOfTheYear**](#MinuteOfTheYear) OPTIONAL<br>
Minute of current UTC year, used only with messages to be archived.
* _timeStamp_ of type [**DSecond**](#DSecond) OPTIONAL<br>
the mSec point in the current UTC minute that this message was constructed.
* _enabledLanes_ of type [**EnabledLaneList**](#EnabledLaneList) OPTIONAL<br>
a list of lanes where the RevocableLane bit has been set which are now active and
therefore part of the current intersection
* _states_ of type [**MovementList**](#MovementList) <br>
Each Movement is given in turn and contains its signal phase state,
mapping to the lanes it applies to, and point in time it will end, and it
may contain both active and future states
* _maneuverAssistList_ of type [**ManeuverAssistList**](#ManeuverAssistList) OPTIONAL<br>
* _regional_ of type **SEQUENCE** (SIZE(1..4)) OF<br>
* **RegionalExtension** {{Reg-IntersectionState}} OPTIONAL<br>
**Categories:** Infrastructure information
**Revision:** _V1.3.1_