Traffic Management Center --> Connected Vehicle Roadside Equipment:
road weather advisory info
Definitions
road weather advisory info (Information Flow): Road weather advisories and associated configuration and control information that are used to manage the RSE. Advisories include segment-specific weather and road conditions including real-time advisories of deteriorating road and weather conditions, medium-term advisories for the next 2-12 hours, and long-term advisories more than 12 hours into the future. This flow includes a schedule for issuing the included advisories.
Traffic Management Center (Source 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.
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 associated with the following Functional Objects:
This Triple is described by the following Functional View Data Flows:
- road_weather_advisories_roadside_device_control
- road_weather_advisory_data_for_vehicle
- vehicle_signage_road_weather_advisory
This Triple has the following triple relationships:
Relationship | Source | Destination | Flow |
---|---|---|---|
Interactive | Connected Vehicle Roadside Equipment | Traffic Management Center | road weather advisory status |
Communication Solutions
- US: SAE Other J2735 - Secure Internet (ITS) (9)
- (None-Data) - Secure Internet (ITS) (32)
Selected Solution
Solution Description
ITS Application Entity
SAE J2735 |
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Mgmt
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Facilities
SAE J2735 |
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 |
---|---|
Time Context | Recent |
Spatial Context | Local |
Acknowledgement | True |
Cardinality | Unicast |
Initiator | Destination |
Authenticable | True |
Encrypt | False |
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 | Low | High | Moderate | |
Basis | Typically intended for public distribution. | Road weather advisory information eventually destined for vehicle OBE. Set HIGH to support the HIGH flow to the OBE. Typically HIGH in areas with significant weather consequence. In areas with less severe weather consequences, may reduce to MODERATE. | This supports eventual distribution to OBEs. Probably not updated frequently but when it is must respond quickly. |
Security Characteristics | Value |
---|---|
Authenticable | True |
Encrypt | False |