| Title | Tone-corrected metrics for pre-2005 INM helicopters |
|---|---|
| Record ID | 51024 |
| Personal Name Creator |
Schulz, Noah E. |
| Source | 4p. in various pagings |
| Corporate Creator | John A. Volpe National Transportation Systems Center (U.S.) |
| Corporate Contributor |
United States. Department of Transportation. Federal Aviation Administration. Office of Environment and Energy |
| Publisher | John A. Volpe National Transportation Systems Center (U.S.) |
| Publication Date | 20120700 |
| Language | English |
| Abstract | Of the 21 Helicopters represented in INM 7.0b, only five include the tone-corrected metrics. The calculation of these metrics involves the analysis of 1/3 octave-band data obtained during the source data measurement process, and requires sound-pressure levels at all measured frequency bands (50-10,000 Hz) for the duration of the aircraft event. A census of data availability was undertaken for helicopters currently in the INM, to determine whether available source data were sufficient to reprocess and calculate the tone-corrected metrics. |
| Rosap ID | dot:12002 |
| Rosap URL | https://rosap.ntl.bts.gov/view/dot/12002 |
| TRT Terms | Helicopters; Aircraft noise; Mathematical prediction; Effective sound pressure; Sound level; Acoustic measuring instruments |
| General Subjects | Noise prediction; Noise model; Integrated Noise Model; Helicopter noise data; Noise metrics |
| Classification | NTL - AVIATION - AVIATION; NTL - AVIATION - Aviation Energy and Environment; NTL - ENERGY AND ENVIRONMENT - Aviation Energy and Environment |
| Geographical Coverage |
United States |
| TRIS Online Accession No |
1518997 |
| Report Number | DOT-VNTSC-FAA-14-04 |
| Availability | Volpe National Transportation Systems Center, Technical Reference Center |
| Resource type | Tech Report |
| URL | https://ntlrepository.blob.core.windows.net/lib/51000/51000/51024/DOT-VNTSC-FAA-14-04.pdf |
| Format | |
| Database | NTL Digital Repository |