Connected Vehicle Roadside Equipment --> Traffic Management Center:
environmental situation data

Definition
Included In
Communication Solutions
Characteristics
Security

Definitions

environmental situation data (Information Flow): Aggregated and filtered vehicle environmental data collected from vehicle safety and convenience systems including measured air temperature, exterior light status, wiper status, sun sensor status, rain sensor status, traction control status, anti-lock brake status, and other collected vehicle system status and sensor information. This information flow represents the aggregated and filtered environmental data sets that are provided by the RSE to the back office center. Depending on the RSE configuration and implementation, the data set may also include environmental sensor station data collected by the RSE.

Connected Vehicle Roadside Equipment (Source 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.

Traffic Management Center (Destination Physical Object): The 'Traffic Management Center' monitors and controls traffic and the road network. It represents centers that manage a broad range of transportation facilities including freeway systems, rural and suburban highway systems, and urban and suburban traffic control systems. It communicates with ITS Roadway Equipment and Connected Vehicle Roadside Equipment (RSE) to monitor and manage traffic flow and monitor the condition of the roadway, surrounding environmental conditions, and field equipment status. It manages traffic and transportation resources to support allied agencies in responding to, and recovering from, incidents ranging from minor traffic incidents through major disasters.

Included In

This Triple is in the following Service Packages:

This triple is associated with the following Functional Objects:

This Triple is described by the following Functional View Data Flows:

This Triple has the following triple relationships:

Relationship	Source	Destination	Flow
Depends On	Vehicle	Connected Vehicle Roadside Equipment	vehicle environmental data

Communication Solutions

(None-Data) - Secure Internet (ITS) (32)
(None-Data) - Apache Kafka (36)
(None-Data) - OMG DDS (36)
(None-Data) - OASIS MQTT (42)
(None-Data) - OASIS AMQP (45)

Solutions are sorted in ascending Gap Severity order. The Gap Severity is the parenthetical number at the end of the solution.

Selected Solution

(None-Data) - OASIS MQTT

Solution Description

This solution is used within Australia and the U.S.. It combines standards associated with (None-Data) with those for OASIS MQTT. The (None-Data) standards include an unspecified set of standards at the upper layers. The OASIS MQTT standards include lower-layer standards that support data distribution of specific types of data.

ITS Application Entity Development needed			Click gap icons for more info.
Mgmt OASIS MQTT DMP	Facilities Development needed OASIS MQTT	Security IP Security Alternatives OASIS MQTT
	TransNet IP Alternatives Internet Transport Alternatives
	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
Time Context	Recent
Spatial Context	Local
Acknowledgement	True
Cardinality	Unicast
Initiator	Source
Authenticable	True
Encrypt	False

Interoperability	Description
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
	Confidentiality	Integrity	Availability
Rating	Low	Moderate	Moderate
Basis	Little to no impact if this data is observed	Only limited adverse effect if environmental data from vehicle safety and convenience systems is bad/compromised; can cope with some bad data; DISC: WYO believes this to be MODERATE HIGH. Changed from THEA's LOW inferring severity of weather data in Wyoming	Only limited adverse effect of info is not timely/readily available. DISC: WYO believes this to be MODERATE. Changed from THEA's LOW inferring severity of weather data in Wyoming

Security Characteristics	Value
Authenticable	True
Encrypt	False

Connected Vehicle Roadside Equipment --> Traffic Management Center:environmental situation data