What kind of a metric is 100 meters? These things are supposed to be “urban mobility”. 100 meters is not urban. Applying the inverse square law, that 65db figure at 100 meters becomes 79db at 20 meters.
What kind of a metric is 100 meters? These things are supposed to be “urban mobility”. 100 meters is not urban. Applying the inverse square law, that 65db figure at 100 meters becomes 79db at 20 meters.