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Analysis Of Modeling Cumulative Noise From Simultaneous Flights
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Book Synopsis Analysis of Modeling Cumulative Noise from Simultaneous Flights by : Eric R. Boeker
Download or read book Analysis of Modeling Cumulative Noise from Simultaneous Flights written by Eric R. Boeker and published by . This book was released on 2012 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This is the first of two volumes of the report on modeling cumulative noise from simultaneous flights. This volume includes: an overview of the time compression algorithms used to model simultaneous aircraft; reviewed summary of a preliminary study (which includes updated measured data); an expanded analysis of cumulative noise from simultaneous flights for several additional National Parks; and a discussion of the remaining issues and tasks that are recommended be addressed."--Technical report documentation page.
Book Synopsis Analysis of Modeling Cumulative Noise from Simultaneous Flights by : Eric R. Boeker
Download or read book Analysis of Modeling Cumulative Noise from Simultaneous Flights written by Eric R. Boeker and published by . This book was released on 2012 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This is the second of two volumes of the report on modeling cumulative noise from simultaneous flights. This volume examines the effect of several modeling input cases on Percent Time Audible results calculated by the Integrated Noise Model. The cases presented in this volume include changes to ambient noise input type as well as changes to sampling duration for ambient inputs. The results are compared with those presented in the Volume I report."--Technical report documentation page.
Author :U.s. Department of Transportation Publisher :Createspace Independent Publishing Platform ISBN 13 :9781494496340 Total Pages :72 pages Book Rating :4.4/5 (963 download)
Book Synopsis Analysis of Modeling Cumulative Noise Simulating Flights Volume 1 by : U.s. Department of Transportation
Download or read book Analysis of Modeling Cumulative Noise Simulating Flights Volume 1 written by U.s. Department of Transportation and published by Createspace Independent Publishing Platform. This book was released on 2013-12-17 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the firstof two volumes of the report on modeling cumulative noise from simultaneous flights. This volumeincludes: an overview of the time compression algorithms used to model simultaneous aircraft; revised summary of a preliminary study (which includes updated measured data); an expanded analysis of cumulative noise from simultaneous flights for several additional National Parks; and a discussion of the remaining issues and tasks that are recommended be addressed.
Book Synopsis Analysis of Modeling Cumulative Noise Simulating Flights Volume 2 by : U.s. Department of Transportation
Download or read book Analysis of Modeling Cumulative Noise Simulating Flights Volume 2 written by U.s. Department of Transportation and published by CreateSpace. This book was released on 2013-12 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the secondof two volumes of the report on modeling cumulative noise from simultaneous flights. This volume examines the effect of several modeling input cases on Percent Time Audible results calculated by the Integrated Noise Model. The cases presented in this volume include changes to ambient noise input typeas well as changes to sampling duration for ambient inputs. The results are comparedwith thosepresentedin the Volume 1 report.
Book Synopsis System Analysis and Modelling in Air Transport by : Milan Janić
Download or read book System Analysis and Modelling in Air Transport written by Milan Janić and published by CRC Press. This book was released on 2021-01-04 with total page 391 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a comprehensive analysis and modelling of demand, capacity, quality of services, economics, and sustainability of the air transport system and its main components - - airports, airlines, and ATC/ATM (Air Traffic Control/Management). Airports consist of the airside and landside area characterized by their capacities for handling demand such as aircraft, air passengers, and air freight/cargo shipments. Regarding spatial configuration, airlines generally operate hub-and-spoke (conventional or legacy airlines) and point-to-point (LCCs - Low Cost Carriers) air route networks. Their fleets consisting of different aircraft types provide transport capacity for serving demand including air passengers and freight/cargo shipments. The ATC/ATM includes the controlled airspace, traffic management and control facilities and equipment on the ground, space, and on board aircraft, and the ATC Controllers). They all provide capacity to handle demand consisting of the flights between origin and destination airports carried out by airline aircraft. The outcome from the interrelationships between demand and capacity at these components materializes as the quality of services. At airports and airlines this is generally expressed by congestion and delays of aircraft, air passengers, and freight/cargo shipments. At ATC/ATM, this is expressed by delays, horizontal and vertical in-efficiency, and safety of flights. Economics of each component relate to its revenues, costs, and profits from handling demand, i.e., providing services of given quality. The sustainability of air transport system has become increasingly important issue for many internal and external actors/stakeholders involved to deal with. This has implied increasing the system’s overall social-economic effects/benefits while reducing or maintaining constant impacts/costs on the environment and society at both global and regional/local scale under conditions of continuous medium- to long term growth.
Author :National Aeronautics and Space Administration (NASA) Publisher :Createspace Independent Publishing Platform ISBN 13 :9781721946310 Total Pages :266 pages Book Rating :4.9/5 (463 download)
Book Synopsis Improved Airport Noise Modeling for High Altitudes and Flexible Flight Operations by : National Aeronautics and Space Administration (NASA)
Download or read book Improved Airport Noise Modeling for High Altitudes and Flexible Flight Operations written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-06-27 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt: The FAA's Integrated Noise Model (INM) is widely used to estimate noise in the vicinity of airports. This study supports the development of standards by which the fleet data in the INM can be updated. A comparison of weather corrections to noise data using INM Spectral Classes is made with the Boeing integrated method. The INM spectral class method is shown to work well, capturing noise level differences due to weather especially at long distances. Two studies conducted at the Denver International Airport are included in the appendices. The two studies adopted different approaches to modeling flight operations at the airport. When compared to the original, year 2000, results, it is apparent that changes made to the INM in terms of modeling processes and databases have resulted in improved agreement between predicted and measured noise levels. Forsyth, David W. and Follet, Jesse I. Langley Research Center NAS1-00086; WBS 23-781-50-21
Book Synopsis Development of a Fast Method to Analyze Patterns in Airport Noise by : Madeleine C. Jansson
Download or read book Development of a Fast Method to Analyze Patterns in Airport Noise written by Madeleine C. Jansson and published by . This book was released on 2021 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Results for a variety of metrics are presented based on data sourced from Boston Logan International Airport in 2016. Day-Night-Level (DNL) is calculated on a yearly, daily, and hourly basis, highlighting the variability in noise patterns depending on evolving airport runway configuration. N60 is calculated as a supplemental metric on a daily basis.
Author :National Aeronautics and Space Administration (NASA) Publisher :Createspace Independent Publishing Platform ISBN 13 :9781722866099 Total Pages :50 pages Book Rating :4.8/5 (66 download)
Book Synopsis The Flight Track Noise Impact Model by : National Aeronautics and Space Administration (NASA)
Download or read book The Flight Track Noise Impact Model written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-13 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt: To meet its objective of assisting the U.S. aviation industry with the technological challenges of the future, NASA must identify research areas that have the greatest potential for improving the operation of the air transportation system. To accomplish this, NASA is building an Aviation System Analysis Capability (ASAC). The Flight Track Noise Impact Model (FTNIM) has been developed as part of the ASAC. Its primary purpose is to enable users to examine the impact that quieter aircraft technologies and/or operations might have on air carrier operating efficiency at any one of 8 selected U.S. airports. The analyst selects an airport and case year for study, chooses a set of flight tracks for use in the case, and has the option of reducing the noise of the aircraft by 3, 6, or 10 decibels. Two sets of flight tracks are available for each airport: one that represents actual current conditions, including noise abatement tracks, which avoid flying over noise-sensitive areas; and a second set that offers more efficient routing. FTNIM computes the resultant noise impact and the time and distance saved for each operation on the more efficient, alternate tracks. Noise impact is characterized in three ways: the size of the noise contour footprint, the number of people living within the contours, and the number of homes located in the same contours. Distance and time savings are calculated by comparing the noise abatement flight path length to the more efficient alternate routing. Burn, Melissa and Carey, Jeffrey and Czech, Joseph and Wingrove, Earl R., III Langley Research Center NAS2-14361; RTOP 538-08-11-01...
Book Synopsis Aircraft Noise Modeling of Dispersed Flight Tracks and Metrics for Assessing Impacts by : Alison Yan-Ka Yu
Download or read book Aircraft Noise Modeling of Dispersed Flight Tracks and Metrics for Assessing Impacts written by Alison Yan-Ka Yu and published by . This book was released on 2019 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt: The implementation of Performance Based Navigation (PBN), such as Area Navigation (RNAV) and Required Navigation Performance (RNP), has led to aircraft being able to fly designed flight tracks very precisely. This has led to communities citing the concentration of aircraft along one flight track as a noise issue because of the frequent overflights above specific areas. In order to assess the impact of frequent overflights, metrics for understanding the annoyance mechanism were necessary. The metric Nx, which is a count of the number of overflights above the A-weighted maximum sound level (L[subscript A,max]) of xdB during the day and (x-10)dB during the night, was investigated. The metric Nx required analysis of the L[subscript A,max] noise level to count as an overflight, as well as the number of overflights that represented the annoyance threshold. N60 on a peak day with 50 overflights was shown to represent at least 80% of the complaint locations at BOS, MSP, LHR, and one runway at CLT. Alternatively peak day DNL is also shown to be a possible representative noise metric and will also be investigated. A noise metric representative of the impacts of frequent overflights allowed for communication of analysis results for possibilities for dispersed flight tracks. Important ways to communicate analysis results to stakeholders included: overall increase or decrease in population exposure to N60 on a peak day with 50 overflights, the change in the number of N60 overflights for the areas of impact, and presentation of the data that allowed stakeholders to understand the impact within the boundaries of their specific representative area. These tools will allow communities to understand the noise impacts of the procedures considered and will support the stakeholder decision processes.
Book Synopsis Grand Canyon National Park (N.P.), Special Flight Rules Area in the Vicinity of Grand Canyon National Park, Actions to Substantially Restore Natural Quiet by :
Download or read book Grand Canyon National Park (N.P.), Special Flight Rules Area in the Vicinity of Grand Canyon National Park, Actions to Substantially Restore Natural Quiet written by and published by . This book was released on 2011 with total page 676 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Modeling the Effects of Aircraft Flight Track Variability on Community Noise Exposure by : Callen Theodore Brooks
Download or read book Modeling the Effects of Aircraft Flight Track Variability on Community Noise Exposure written by Callen Theodore Brooks and published by . This book was released on 2017 with total page 121 pages. Available in PDF, EPUB and Kindle. Book excerpt: The implementation of Performance Based Navigation (PBN) routes across the National Airspace System (NAS) has caused a significant concentration of flight tracks. This flight track concentration also creates a concentration of noise impacts on the communities surrounding airports, which has led to an increase in noise complaints at many airports that have implemented these routes. In order to understand these changes in noise, and to design procedures that could help mitigate any negative effects, it is important to have modeling tools capable of capturing the noise impacts of flight track variability. This thesis develops a model for this purpose. First, twenty days of radar flight trajectory data from 2015 and 2016 at Boston Logan International Airport (KBOS) is used to quantify the observed distributions of variability in speed, altitude, and lateral track position. It is shown that altitude and speed variability have relatively small impacts on noise, but that the impacts of observed lateral variability are significant. Using this information, a physics-based model is developed to capture the noise impacts of lateral flight track variability. This tool is then used to model several example scenarios. First, the changes in noise due to pre- and post-PBN procedures are examined for KBOS Runway 33L departures. Next, a hypothetical procedure is designed to intentionally introduce lateral dispersion to KBOS Runway 33L departures. Finally, the tool is used to rapidly model noise impacts on due to both arrival and departure operations on all runways at KBOS. The model is shown to reduce computational expense by 1-2 order of magnitude relative to traditional methods. The results of these example analyses show that increased lateral dispersion causes a significant noise reduction at higher noise levels directly below the flight track at the cost of wider contours at lower noise levels. Because of this, any decision to add or remove flight track lateral dispersion has highly localized impacts that depend on the geometry of the route and the population of the surrounding area, and thus must be closely analyzed on an individual basis.
Book Synopsis Marine Corps Air Station El Toro, Disposal and Reuse by :
Download or read book Marine Corps Air Station El Toro, Disposal and Reuse written by and published by . This book was released on 2002 with total page 518 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Book Synopsis Aeroacoustics of Flight Vehicles by : Harvey H. Hubbard
Download or read book Aeroacoustics of Flight Vehicles written by Harvey H. Hubbard and published by . This book was released on 1991 with total page 620 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Proposed Master Plan Update Development Actions, Seattle-Tacoma (Sea-Tac) International Airport, King County by :
Download or read book Proposed Master Plan Update Development Actions, Seattle-Tacoma (Sea-Tac) International Airport, King County written by and published by . This book was released on 1996 with total page 750 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Logan Airside Improvements Planning Project by :
Download or read book Logan Airside Improvements Planning Project written by and published by . This book was released on 2002 with total page 656 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Nellis Air Force Base (AFB), F-35 Force Development Evaluation (FDE) and Weapons School (WS) Beddown by :
Download or read book Nellis Air Force Base (AFB), F-35 Force Development Evaluation (FDE) and Weapons School (WS) Beddown written by and published by . This book was released on 2011 with total page 446 pages. Available in PDF, EPUB and Kindle. Book excerpt:
