National Transportation Noise Map shows levels of interstate highway noise across the country

By Team Writer / April 11, 2017

The U.S. Department of Transportations Bureau of Transportation Statistics initial National Transportation Noise Map shows that more than 97 percent of the U.S. population has the potential to be exposed to noise from aviation and Interstate highways at levels below 50 decibels or roughly comparable to the noise level of a humming refrigerator. Using the National Transportation Noise Map data, BTS highlighted the percentage of total U.S. resident population that had the potential to be exposed to the following A-weighted 24-hour equivalent sound levels from aviation and Interstate road noise in the year 2014.

Key Takeaways:

  • A much smaller segment of the U.S. resident population has the potential to be exposed to higher levels of aviation and Interstate highway noise.
  • The purpose of the noise map is to facilitate the tracking of trends in transportation-related noise, by mode, and collectively for multiple transportation modes.
  • The BTS map contains aircraft and road noise inventory data provided as web map services (WMS) for use with Geographic Information Systems (GIS).

“More than 97 percent of the U.S. population has the potential to be exposed to noise from aviation and Interstate highways at levels below 50 decibels or roughly comparable to the noise level of a humming refrigerator.”

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Team Writer