Air Quality Sensors

Interconnects - Flows - Entities - Services - Functional Requirements

Definition:

These sensors monitor general air quality within a sector of a area and also monitor the emissions of individual vehicles on the roadway.

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Systems Interconnected
with the Air Quality Sensors

Air Quality Alert System

Interconnect Diagram

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Architecture Flow Diagrams
which include Air Quality Sensors:

• Air Quality Sensors Air Quality Alert System

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Architecture Flows
to/from the Air Quality Sensors:

Air Quality SensorsAir Quality Alert System

• area pollution data

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National ITS Architecture Subsystems
mapped to the Air Quality Sensors:

• Roadway Subsystem

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National ITS Architecture Services
associated with Air Quality Sensors:

• ATMS11 - Emissions Monitoring and Management -- (Graphic)

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National ITS Architecture Functional Requirements
associated with Air Quality Sensors:

1. The field element shall include sensors (such as traffic, environmental, and work zone intrusion detection sensors) that provide data and status information to other field element devices (such as dynamic message signs, ramp meters, traffic signals, work zone intrusion alert systems), without center control.

1. The field element shall include emissions sensors that detect levels of emissions from individual vehicles, under center control.
2. The field element shall include air quality sensors, often distributed geographically, that detect area-wide levels of pollution, under center control.
3. The field element shall analyze collected vehicle emissions data against reference data to determine whether or not a vehicle is violating the acceptable levels of emissions, and shall return this analysis to a center for possible enforcement action.
4. If the emissions level detected by the emissions sensor indicates a vehicle is violating the acceptable levels of emissions, the field element shall provide the capability to display summary emissions information or warnings to passing drivers via a driver information system (such as portable messages signs, etc.).
5. The field element shall provide emissions sensor equipment operational status to the center.
6. The field element shall provide emissions sensor equipment fault indication to the center for repair.
7. The field element shall provide area-wide pollution sensor equipment operational status to the center.
8. The field element shall provide area-wide pollution sensor equipment fault indication to the center for repair.