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<br />Table 9-1 <br /> <br />1 <br />Levels of Common Sounds <br /> <br />~~T <br /><LJ'~0\:: <br />'1-~-8S- <br /> <br />.- < <br /> <br />. <br /> <br />Sound Sound Levell Relative Relative <br /> dB(A) Loudness Sound <br /> (Approximate) Energy: <br />Jet Plane, 100 Feet 130 128 10.000,000 <br />Rock Music with Amplifier . 120 64 1,000,000 <br />Thunder, Danger of Permanent 110 32 100,000 <br />Hearing Loss <br />Boiler Shop, Power Mower 100 16 10,000 <br />Orchestral Crescendo at 25 90 8 1,000 <br />Feet, Noisy Kitchen <br />Busy Street 80 4 100 <br />Interior of Department Store 70 2 10 <br />Ordinary Conversation, 3 Feet away 60 I I <br />Quiet Automobile at Low Speed SO 1/2 .1 <br />Average Office 40 1/4 .01 <br />City Residence 30 1/8 .00t <br />QuietCountry Residence 20 1/16 .0001 <br />Rustle of Leaves 10 1/32 .00001 <br />Threshold of Hea.ring 0 1/64 .000001 <br /> <br />A land use compatibility system for areas near airports has <br /> <br />been developed by the FAA and outlined in Advisory Circular <br />150/5050-6 "Airport-Land Use Compatibility Planning". In <br /> <br />. <br /> <br />this publication the Land Use Guidance Zone (LUG) system is <br /> <br />introduced as an approach to airport noise evaluation and <br /> <br />compatibility land use planning. <br /> <br />The LUG system is a uniform noise evaluation technique which <br /> <br />directly relates to land use compatibility planning and which <br /> <br />constitutes a single system for determining the impact of noise <br /> <br />upon individuals resulting from the aircraft operations at an <br /> <br />airport. This system utilizes the common noise estimating <br /> <br />methodologies as input and translates these, using a series of <br /> <br />noise quality zones, into categories of land use compatible or <br /> <br />incompatible with the existing and forecast aircraft noise <br />~ impacts at a particular airport. <br /> <br />lA Guide for Land Use Planning Around Airports in Wisconsin, <br />WI/DOT Division of Aeronautics, 1976. <br /> <br />Q-1 <br />