ANSI/ASA S12.9 Part 5-2007 环境噪声的描述和测量用音量及程序.第5部分:稳定区域测定用噪声级描述符
Quantities and Procedures for Description and Measurement of Environmental Sound - Part 5: Sound Level Descriptors for Determination of Compatible Land Use
Provides guidance on the compatibility of various human uses of land with the acoustical environment, using the yearly average total day-night adjusted sound exposure or the yearly average adjusted day-night average sound level to characterize the acoustical environment. An informative annex provides guidance to local authorities for designation of land uses compatible with existing or predicted yearly average total day-night adjusted sound exposure or yearly average adjusted day-night average sound level.