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.