Accelerated Process: Measurement and Modeling Techniques (23 CFR 772)

completed

The Federal Highway Administration (FHWA) noise regulation requires an investigation of traffic noise in areas adjacent to Federal-aid or FHWA approved type 1 projects. This required investigation includes field measurements and modeling of traffic noise levels. However, measurement instrumentation and procedures have varied from program to program, agency to agency and/or situation to situation. In addition, there are many components make up a noise analysis and its associated noise reports. A reviewer can have a difficulty in reviewing individual components for compliance and accuracy. This difficulty is compounded with each additional component. The objective of this project was to develop the following documents in an effort to facilitate an accelerated process of measuring highway traffic noise and reviewing highway traffic noise reports and traffic noise management (TNM) modeling reports: Noise measurement handbook Noise measurement field guide Techniques for reviewing noise analysis and associated noise reports Techniques for reviewing TNM model runs and associated modeling reports