SoMa is Loud. So is the Mission.

Almost a third of SoMa residents are estimated to be "highly annoyed" by neighborhood noise levels, according to a new noise map created by researchers. How they arrived at such a highly scientific conclusion is less clear, but at an average of 70 decibels, being in SoMa sounds something like "a vacuum running within a few feet of a person." But it's not the fault of all that new construction — blame the cars, which flood the nabe every day on their way elsewhere. Other loud nabes: Tenderloin, the FiDi, and Inner Mission. [Examiner]