I can't really see any wide-scale drone operation operating in a residential areas. The decibel output of a single delivery drone similar to a delivery van ~70-80 decibels (hard to get comparable decibel output). A delivery truck driver averages around 120 deliveries from one van. A drone can carry one (or maybe a few packages at a time). There would need to be many more round trips for drones meaning far more distance covered by drone. This would require more drones than vans to complete deliveries.
Drones sound has a much higher frequency than a van, and to me, drones are more noticeable than the similar decibel output of a van.
To be fair, drones have one advantage and that is that they can cover most of the range between the pickup and drop-off points at higher altitudes that would decrease decibels at ground level.
Edit: Every 6 decibels sound aptitude doubles so 70-80db is a big difference. Would need to get more reliable and comparable dBA readings.
To be fair, drones have one advantage and that is that they can cover most of the range between the pickup and drop-off points at higher altitudes that would decrease decibels at ground level.
Edit: Every 6 decibels sound aptitude doubles so 70-80db is a big difference. Would need to get more reliable and comparable dBA readings.