A copy of the Part 150 Study including all input received during the public comment period and responses to the input is available here. The study will next be submitted to the FAA and the Port anticipates the FAA will issue their Record of Approval by late spring of 2014. The Port of Seattle Commission approved the Federal Aviation Administration (FAA) Part 150 Noise and Land-Use Compatibility Study on October 22, 2013. The Port of Seattle worked with Landrum & Brown to update its Part 150 Noise Compatibility Study for the Seattle-Tacoma International Airport (Sea-Tac), last completed in 2002. Welcome to the Seattle-Tacoma International Airport Part 150 Study Sea-Tac Airport is known for having one of the most comprehensive noise reduction programs in the nation and the approval of the study will help the port to further minimize the impact of airport noise on its neighboring communities. Port staff will now begin work on developing a Part 150 Study prioritization plan for the Port of Seattle Commission's consideration. Further information regarding condominium insulation is expected soon from the FAA. A copy of the FAA's Record of Approval, which includes summaries of the study’s noise mitigation measures, is available here. The total population inside the 55 DNL contours was estimated to 37 million in 2018 and could range from 76 million under Scenario 1 to 38 million under Scenario 4 in 2050 this is under the assumption that population density around airports does not vary in time.The Port of Seattle is pleased to announce that the Federal Aviation Administration (FAA) has approved Seattle-Tacoma International Airport's Part 150 Noise and Land Use Compatibility Study. In 2050 the technology freeze (Scenario 1) total global contour area is 31,407 square-km and decreases to 15,196 square-km and 21,570 square-km, with advanced and low technology improvements, respectively. This value decreases to 9,451 square-km in 2020 due to the COVID-19 downturn and increases to 15,530 square-km by 2024. The 2018 contour area is 16,486 square-km. Historical data modelled in the prior CAEP/11 work cycle is also shown for 2015. Of note is that under the advanced aircraft technology scenario (Scenario 4), from about 2030 onwards, the total yearly average DNL contour area may no longer increase with an increase in traffic.įigure 1-10 provides results for the total global 55 DNL contour area (i.e., for 319 airports) for 2018, 2019, 2020, 2024, 2028, 20 for the four scenarios. By 2045, the area is expected to grow from 1.0 to 2.2 times, compared with 2015, depending on the technology scenario. In 2015, this area was 14,400 square-kilometres, and the population inside that area was approximately 30 million people. For Scenarios 2, 3, and 4, an additional moderate operational improvement of 2% is applied for population inside DNL 55, 60, and 65 contours.įigure 1 shows the total 55 dB DNL noise contour area from 2010 to 2050. Scenario 4 includes noise technology improvements of 0.2 EPNdB per annum for all aircraft entering the fleet from 2019 to 2050. Scenario 3 was meant to capture a COVID-19 delay, with no noise technology improvements for aircraft entering the fleet from 2019 to 2023, and technology improvements of 0.2 EPNdB per annum for all aircraft entering the fleet from 2024 to 2050. Scenario 2 includes noise technology improvements of 0.1 EPNdB per annum for all aircraft entering the fleet from 2019 to 2050. Scenario 1 (CAEP/12 Baseline) assumes no further aircraft technology or operational improvements after 2018. For all other airports, the NASA Gridded Population of the World, version 4 (GPW v4) was used. Population counts for airports in the US, Europe, and Brazil used the latest available local census data. LTAG - Long-term global aspirational goalĪs part of the CAEP/12 (2022) update to the ICAO Global Environmental Trends, four scenarios were developed for the noise trends assessment, resulting in the total contour area and population inside the yearly average day-night level (DNL) contours (55, 60, and 65 dB) for 319 global airports, representing approximately 80% of the global traffic.Noise from Emerging Technology Aircraft.Technology Standards (Reduction of noise at source).
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