Link Type: Center to Field
Data Distribution System --> Connected Vehicle Roadside Equipment:
data query publication
Definitions
data query publication (Information Flow): Data query publication includes those dialogs necessary to satisfy the response portion of a query-response action using the data distribution architecture. The information content varies widely based on available content and the query, but it generally includes information on the state of transportation system operations including traffic and road conditions, advisories, incidents, transit service information, weather information, parking information, and other related data.
Data Distribution System (Source Physical Object): The 'Data Distribution System' collects, processes, and distributes ITS data, connecting data producers with data consumers and facilitating data exchange.
Connected Vehicle Roadside Equipment (Destination Physical Object): 'Connected Vehicle Roadside Equipment' (CV RSE) represents the Connected Vehicle roadside devices that are used to send messages to, and receive messages from, nearby vehicles using Dedicated Short Range Communications (DSRC) or other alternative wireless communications technologies. Communications with adjacent field equipment and back office centers that monitor and control the RSE are also supported. This device operates from a fixed position and may be permanently deployed or a portable device that is located temporarily in the vicinity of a traffic incident, road construction, or a special event. It includes a processor, data storage, and communications capabilities that support secure communications with passing vehicles, other field equipment, and centers.
Included In
This Triple is in the following Service Packages:
This Triple is in the following Functional Objects:
This Triple is described by the following Functional View Data Flows:
This Triple has the following triple relationships:
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Communication Solutions
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Data for Distribution (TBD) - Apache Kafka (36)
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Data for Distribution (TBD) - OASIS MQTT (42)
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Data for Distribution (TBD) - OASIS AMQP (45)
Selected Solution


Solution Description
ITS Application Entity
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Mgmt
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Facilities
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Security
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TransNet
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Access
Internet Subnet Alternatives ![]() |
Note that some layers might have alternatives, in which case all of the gap icons associated with every alternative may be shown on the diagram, but the solution severity calculations (and resulting ordering of solutions) includes only the issues associated with the default (i.e., best, least severe) alternative.
Characteristics
Characteristic | Value |
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Time Context | Recent |
Spatial Context | Regional |
Acknowledgement | True |
Cardinality | Unicast |
Initiator | Source |
Authenticable | True |
Encrypt | True |
Interoperability | Description |
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Local | In cases where an interface is normally encapsulated by a single stakeholder, interoperability is still desirable, but the motive is vendor independence and the efficiencies and choices that an open standards-based interface provides. |
Security
Information Flow Security | ||||
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Confidentiality | Integrity | Availability | ||
Rating | High | High | Moderate | |
Basis | This value is derived from the specific flows satisfied by this super-flow. HIGH is set because some flows may require it. If the implementation includes flows with only a MODERATE or LOW confidentiality requirement, then this could be MODERATE or LOW, as appropriate. | This value is derived from the specific flows satisfied by this super-flow. HIGH is set because some flows may require it. If the implementation includes flows with only a MODERATE or LOW integrity requirement, then this could be MODERATE or LOW, as appropriate. | Query flows need some level of availability; if the flow is not satisfied the user may be become frustrated and seek a solution other than DDS. Thus MODERATE. |
Security Characteristics | Value |
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Authenticable | True |
Encrypt | True |