[Ed. – It’s a natural phenomenon, induced by man-made alterations. It isn’t going to stop. (It’s 2020.)]
Bay Area residents were serenaded by the Golden Gate Bridge as wind gusts passed through the region Friday — a new phenomenon that has a relatively simple explanation. ..
After enough people inquired about the noise, the Golden Gate Bridge Sargent reported the sound is caused by wind hitting new sidewalk railing slats.
The recently-installed slats were originally intended to help with wind resistance, but engineers evidently did not take into account that when wind passes through the open gaps between the slats, it can create a very loud humming noise akin to a musical instrument, as KQED pointed out. Officials said there are no planned fixes for the issue.