Alerting and Advisory Systems (Terminator*)
This terminator 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 terminator 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.
Inputs/Outputs: Architecture Flows* and Data Flows*
Alerting and Advisory Systems
Commercial Vehicle Administration
- alerts and advisories (Architecture Flow*) - Assessments (general incident and vulnerability awareness information), advisories (identification of threats or recommendations to increase preparedness levels), and alerts (information on imminent or in-progress emergencies). This flow also provides supporting descriptive detail on incidents, threats, and vulnerabilities to increase preparedness and support effective response to threats against the surface transportation system.
Data Flows*:
Alerting and Advisory Systems
Commercial Vehicle Check
- alerts and advisories (Architecture Flow*) - Assessments (general incident and vulnerability awareness information), advisories (identification of threats or recommendations to increase preparedness levels), and alerts (information on imminent or in-progress emergencies). This flow also provides supporting descriptive detail on incidents, threats, and vulnerabilities to increase preparedness and support effective response to threats against the surface transportation system.
Data Flows*:
Alerting and Advisory Systems
Emergency Management
- alerts and advisories (Architecture Flow*) - Assessments (general incident and vulnerability awareness information), advisories (identification of threats or recommendations to increase preparedness levels), and alerts (information on imminent or in-progress emergencies). This flow also provides supporting descriptive detail on incidents, threats, and vulnerabilities to increase preparedness and support effective response to threats against the surface transportation system.
Data Flows*: - threat support data (Architecture Flow*) - Information provided to help receiving agency identify possible threats, including biometric image processing support data.
Data Flows*:
Alerting and Advisory Systems
Fleet and Freight Management
- alerts and advisories (Architecture Flow*) - Assessments (general incident and vulnerability awareness information), advisories (identification of threats or recommendations to increase preparedness levels), and alerts (information on imminent or in-progress emergencies). This flow also provides supporting descriptive detail on incidents, threats, and vulnerabilities to increase preparedness and support effective response to threats against the surface transportation system.
Data Flows*:
Alerting and Advisory Systems
Maintenance and Construction Management
- alerts and advisories (Architecture Flow*) - Assessments (general incident and vulnerability awareness information), advisories (identification of threats or recommendations to increase preparedness levels), and alerts (information on imminent or in-progress emergencies). This flow also provides supporting descriptive detail on incidents, threats, and vulnerabilities to increase preparedness and support effective response to threats against the surface transportation system.
Data Flows*:
Alerting and Advisory Systems
Traffic Management
- alerts and advisories (Architecture Flow*) - Assessments (general incident and vulnerability awareness information), advisories (identification of threats or recommendations to increase preparedness levels), and alerts (information on imminent or in-progress emergencies). This flow also provides supporting descriptive detail on incidents, threats, and vulnerabilities to increase preparedness and support effective response to threats against the surface transportation system.
Data Flows*:
Alerting and Advisory Systems
Transit Management
- alerts and advisories (Architecture Flow*) - Assessments (general incident and vulnerability awareness information), advisories (identification of threats or recommendations to increase preparedness levels), and alerts (information on imminent or in-progress emergencies). This flow also provides supporting descriptive detail on incidents, threats, and vulnerabilities to increase preparedness and support effective response to threats against the surface transportation system.
Data Flows*:
Emergency Management
Alerting and Advisory Systems
- threat data for analysis (Architecture Flow*) - Data from surveillance or sensor equipment in secure areas provided for further analysis.
Data Flows*: - threat information (Architecture Flow*) - Threats regarding transportation infrastructure, facilities, or systems detected by a variety of methods (sensors, surveillance, threat analysis of advisories from outside agencies, etc.
Data Flows*:
Fleet and Freight Management
Alerting and Advisory Systems
- fleet and freight threat information (Architecture Flow*) - Information about threats detected by commercial vehicle fleet and freight operators. The threats include incidents involving commercial vehicles (i.e. hijacking), unusual activities observed by commercial vehicle operators (i.e. truck parked under a bridge), and incidents involving freight equipment (i.e. freight equipment tampering).
Data Flows*:

