Traffic Management Center --> Alerting and Advisory System:
threat information
Definitions
threat information (Information Flow): Threats regarding transportation infrastructure, facilities, or systems detected by a variety of methods (sensors, surveillance, threat analysis of advisories from outside agencies, etc.
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.
Alerting and Advisory System (Destination Physical Object): 'Alerting and Advisory System' represents the federal, state, and local alerting and advisory systems that provide alerts, advisories, and other potential threat information that is relevant to surface transportation systems. This includes systems such as the Information Sharing and Analysis Centers (ISACS), the National Infrastructure Protection Center (NIPC), the Homeland Security Advisory System (HSAS), and other systems that provide intelligence about potential, imminent, or actual attacks on the transportation infrastructure or its supporting information systems.
This system also represents the early warning and emergency alert systems operated by federal, state, county, and local agencies that provide advisories and alerts regarding all types of emergencies including natural hazards (floods, hurricanes, tornados, earthquakes), accidents (chemical spills, nuclear power plant emergencies) and other civil emergencies such as child abduction alerts that impact transportation system operation and/or require immediate public notification. Note that weather related watches and warnings, such as those issued by the National Hurricane Center, are provided by both this terminator and the Weather Service terminator since many alerting and advisory systems and the National Weather Service both provide severe weather and related hazards information.
The alerts and advisories that are provided by the systems represented by this terminator are based on analysis of potential threat information that is collected from a variety of sources, including information collected by ITS systems. The bidirectional interface with this terminator allows potential threat information that is collected by ITS systems to be provided to the alerting and advisory systems to improve their ability to identify threats and provide useful and timely information.
The types of information provided by this terminator include general assessments and incident awareness information, advisories that identify potential threats or recommendations to increase preparedness levels, alerts regarding imminent or in-progress emergencies, and specific threat information such as visual imagery used for biometric image processing.
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:
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Communication Solutions
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(None-Data) - Guaranteed Secure Internet (ITS) (43)
Selected Solution
(None-Data) - Guaranteed Secure Internet (ITS)Solution Description
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ITS Application Entity
  
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Mgmt
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Facilities
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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 | Regional |
| Acknowledgement | True |
| Cardinality | Unicast |
| Initiator | Source |
| Authenticable | True |
| Encrypt | True |
| Interoperability | Description |
|---|---|
| National | This triple should be implemented consistently within the geopolitical region through which movement is essentially free (e.g., the United States, the European Union). |
Security
| Information Flow Security | ||||
|---|---|---|---|---|
| Confidentiality | Integrity | Availability | ||
| Rating | Moderate | High | High | |
| Basis | This data is used to determine if there may be a threat to the transportation infrastructure. As this may provoke a response against that threat, this information should be protected from viewing by parties that may be related to the threat. | All threat-related flows should have some measure of confidence assigned to them, as they will necessarily provoke responses from the receiving entities. Corrupted or forged data could inhibit that response or cause one when none is warranted. Both of these cases offer significant negative impacts. Given the scope of the transportation system, we set this HIGH. For small-scoped systems, this may be MODERATE if the response would never be significantly different than daily operations. | Since this information may indicate a threat against the transportation system, including personal safety, we can justify a HIGH rating. Lack of information could lead to extreme consequences if no response is taken. In areas where responses are already part of daily activity, this may be reduced to MODERATE. | |
| Security Characteristics | Value |
|---|---|
| Authenticable | True |
| Encrypt | True |