National Transportation Noise Map

  • The multi-modal National Transportation Noise Map facilitates the tracking of trends in transportation-related noise produced by both individual modes – whether aviation, highway, or passenger rail – and collectively across all three modes.
  • The decibel values shown on the Noise Map are estimates of the average quantity of noise energy emitted by one or more modes of transportation at each location during a given 24-hour period.
  • The noise data visualized on the map should be used for the purpose of tracking trends, not for assessing impact.

For more information about the National Transportation Noise map, to access data, FAQs, and technical documentation, please visit: