I have lived in the Adams Point neighborhood in Oakland that has a population density of 32,000 per square mile for over a decade. This is about the same densit

I have lived in the Adams Point neighborhood in Oakland that has a population density of 32,000 per square mile for over a decade. This is about the same density as Brooklyn. It is right next to the I-580 (but is luckily below grade by this neighborhood), near the 980/24 freeway and 1/2 mile from downtown Oakland. No AC and no AC from my neighbors. I'm thankful for that as a few new buildings do have AC and walking by them is not very pleasant in an otherwise relaxing evening stroll. I know many of my next door neighbors and luckily don't have any habitual yellers or badly trained dogs near to me. Early morning garbage trucks once a week and gardeners leaf blowing in front of leafless condos is the biggest noise problems. Cars are not so noisy as the narrow street keeps most people driving under 25 mpg. I can hear the freight trains as they pass through Jack London square, but that is a couple of miles away. Maybe I have just stumbled upon a high density urban setting that somehow is not so noisy compared to others. Have you walked around Paris? There are lots of quiet streets right in the middle of the city. Maybe a million of these flying around the Bay would be fine and I'd love to see them work and then tested out for noise. I sure hope they are so quiet you would not notice them. Traffic congestion is making living in the Bay Area much more unpleasant than it could be.