JLUS Background Report - Page 258

2. Measures to achieve NLR of 25 dB must be incorporated into the design and construction of portions of these buildings where the public is received, office areas, noise sensitive areas, or where the normal noise level is low. 3. Measures to achieve NLR of 30 dB must be incorporated into the design and construction of portions of these buildings where the public is received, office areas, noise sensitive areas, or where the normal noise level is low. 4. Measures to achieve NLR of 35 dB must be incorporated into the design and construction of portions of these buildings where the public is received, office areas, noise sensitive areas, or where the normal noise level is low. 5. If project or proposed development is noise sensitive, use indicated NLR; if not, land use is compatible without NLR. 6. Buildings are not permitted. 7. Land use is compatible provided special sound reinforcement systems are installed. 8. Residential buildings require an NLR of 25 dB. 9. Residential buildings require an NLR of 30 dB. 10. Residential buildings are not permitted. 11. Land use that involves outdoor activities is not recommended, but if the community allows such activities, hearing protection devices should be worn when noise sources are present. Long-term exposure (multiple hours per day over many years) to high noise levels can cause hearing loss in some unprotected individuals. It should be noted that the land use recommendations in the Seymour  Johnson AFB Air Installations Compatible Use Zones (AICUZ) Study was  based on similar guidance in DOD Instruction (DODI) 4165.57; however,  AFI 32‐7063 was most recently updated in December 2015 and supersedes  the DOD compatible land use recommendations in the 2011 Seymour  Johnson AFB AICUZ Study.  noise contours, commercial uses are considered incompatible with the  exception of wholesale trade; building materials, hardware, and farm  equipment sales; warehousing and storage; and repair services provided  they all achieve a noise reduction level (NLR) of 35 dB in the design and  construction of portions of buildings where the public is received, office  areas, noise sensitive areas, or where the normal noise level is low.  While residential buildings are discouraged in the 65 ‐75 dB noise contours,  they may be acceptable when no other development options are available,  provided noise level reduction (NLR) measures achieve a 25 decibel (dB) or  30 dB reduction in outdoor to indoor noise.  Mobile homes are considered  incompatible in all noise contours.  All residential uses in the 75 dB and  higher noise contours are incompatible.  Healthcare uses such as hospitals and medical facilities and education  facilities including childcare services are conditionally compatible within the  65 – 75 dB noise contours provided they achieve NLR in the design and  construction of buildings.  In the 75 dB and higher noise contours these uses  are incompatible.  Nursing homes are incompatible in all noise contours,  though within the 65 – 75 dB noise contour they may be acceptable when  no other development options are available provided noise level reduction  (NLR) measures achieve a 25 decibel (dB) or 30 dB reduction in outdoor to  indoor noise.         Commercial uses are compatible within the 65 dB noise contour and  conditionally compatible within the 70 – 80 dB noise contours provided  noise level reduction (NLR) measures are incorporated in the design and  construction of structures to meet outdoor to indoor noise transmission  requirements which vary by use and noise contour.  In the 80 dB and higher  Page 5.18‐14  The compatibility of cultural, entertainment and recreation uses varies  depending on type of use and whether there are indoor versus outdoor    Background Report