Oh, come on. No dB? And you call yourselves a science+tech site? If it's only a few dB over a longer period of time, I wouldn't be a fan. dB is logarithmic in nature - 10db generally doubles your loudness. The road in front of my house went from 60 to 70db after repaving using 'moneysaving' chipseal (which actually should not be used in a community for this purpose).
Doesn't sound like much on paper, but in reality, it's now near-deafening on busy mornings when I'm out watering trees.