Which program is the Noise Integrated Routing System (NIRS) and what is its purpose?

• A. To analyze air traffic changes over broad areas for noise
• B. To model fuel consumption and emissions
• C. To forecast weather patterns
• D. To schedule maintenance windows

Answer: (A)

The main idea here is that this system focuses on how changing air traffic patterns affect noise on the ground. It analyzes air traffic changes across large geographic areas to map where noise levels will rise or fall and to compare different routing scenarios. This helps planners assess noise impacts on communities and explore routing options to reduce disturbance. It isn’t about modeling fuel burn and emissions, forecasting weather, or scheduling maintenance, which are covered by other tools. So the program is used to analyze air traffic changes over broad areas for noise.