A decibel indicates the amount of sound-producing energy emitted by an object. The decibels produced by a range of everyday objects, a reference for the sounds referenced on the Noise Map.ĭecibels are the primary measurement of sound and the unit of the values depicted on the National Transportation Noise Map.
#Usdot.gov noise mapping update#
This newest update enables users to interactively compare changes in potential noise between 20 for aviation and highway modes. Map of aviation, highway and rail noise in the San Francisco Bay Area, from the new interactive web application. Passenger rail noise includes commuter rail mainline, high-speed electric, Light Rail Transit (LRT) and Rail Rapid Transit (RRT), and street cars.įor additional information, see the interactive web map and the interactive transportation noise map story. 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, the newest addition to the tool – and collectively across all three modes. The updated map includes passenger rail-related noise which was not part of the previous version and, therefore, cannot be used to compare changes. This map highlights the changes in transportation noise since the release of the inaugural map in 2017. Today’s release is the first biennial update of a tool that allows the public to view geographic trends of transportation-related noise. Numbers in the table are the total population that had the potential to be exposed to the average sound levels for the day (A-weighted 24-hour equivalent sound levels (LAEQ)). Advisory Council on Transportation Statistics.National Transportation Knowledge Network.National Transportation Library Main - Library.
Vehicle Inventory and Use Survey (VIUS).Transportation Statistics Annual Reports.Local Area Transportation Characteristics (LATCH dataset).Government Transportation Financial Statistics.Statistical Products and Data Main - Statistical 1.Transportation Maps and Geospatial Data.Introduction to Transportation Statistics.