FROM DETROIT TOPOGRAPHY:
"This map shows modeled road and aviation noise from US Department of Transportation Bureau of Transportation Statistics (BTS). The noise value expressed is the 24-hr equivalent sound level (dBA LAeq). In Detroit the roadways make a broad web of noise that is unavoidable across the city, but the airports – even City Airport generates a larger volume of noise across more of the city and region. Willow Run also highlights in Western Wayne County. "
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"This map shows modeled road and aviation noise from US Department of Transportation Bureau of Transportation Statistics (BTS). The noise value expressed is the 24-hr equivalent sound level (dBA LAeq). In Detroit the roadways make a broad web of noise that is unavoidable across the city, but the airports – even City Airport generates a larger volume of noise across more of the city and region. Willow Run also highlights in Western Wayne County. "
Read the original post
