CESSNA 421 TURBINE — Performance Data

This document provides a comprehensive analysis of aircraft noise exposure related to the Kalamazoo/Battle Creek International Airport. It focuses on the methodology used to assess noise levels, the metrics for quantifying noise exposure, and the resultant noise contours that depict the noise environment around the airport. The analysis is based on operational data from 2019 and includes projections for future noise levels based on expected increases in aircraft operations. The document is intended for airport management, aviation professionals, and stakeholders interested in understanding the impact of airport operations on surrounding communities.

• The DNL is the standard federal metric for determining cumulative noise exposure, expressed in decibels (dB).
• A-weighted decibels (dBA) are used to correlate sound levels with human hearing sensitivity.
• The AEDT software is used for modeling aircraft noise environments and requires detailed operational data.
• Forecasted noise contours for 2024 and 2029 indicate changes in noise exposure due to projected increases in aircraft operations.