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Pennsylvania Code (Last Updated: April 5, 2016) |
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Title 67. TRANSPORTATION |
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PART I. Department of Transportation |
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Subpart A. Vehicle Code Provisions |
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Article VII. Vehicle Characteristics |
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Chapter 157. Established Sound Levels |
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SubChapter F. CORRECTION FACTORS |
Table 2. Distance Correction Factors
Latest version.
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If the distance between the microphone location point and the microphone target point is Sound level
correction factor dB (A)26-29 feet -7 29-32 feet -6 32-35 feet -5 35-39 feet -3 39-43 feet -2 43-48 feet -1 48-58 feet 0 58-70 feet +1 70-83 feet +2 83-99 feet +3 99-118 feet +4