I would be happy if no one could speed under my windows. Difference between 50 kmh and 30 kmh is equivalent to 50% noise reduction (~ -5 dB). And tyre noise bec

I would be happy if no one could speed under my windows. Difference between 50 kmh and 30 kmh is equivalent to 50% noise reduction (~ -5 dB). And tyre noise becomes dominant just a little over 30 kmh (20 mph). https://workinggroupnoise.files.wordpress.com/2013/03/leafletlayout_v2_simplecover_final.pdf https://workinggroupnoise.files.wordpress.com/2013/03/leafle...