Traffic crossing Golden Gate Bridge expansion joint, recorded during the third wikiGong.com Golden Gate Bridge assay http://www.wikigong.com/med... http://www.flickr.com/photo... Derived from “file0534.wav” (partially normalized, and shortened; 64,465 kB, available on request), which I recorded 2/26/2011 using an MAudio MicroTrack 24/96 digital audio recorder and Sony ECM-MS907 stereo microphone. Posted to ccMixter.org and wikiGong.com.