Big Data intersection is a semi-private blog about referencing News, Science and Fiction, Technology, Bizarre Stories & Entertainment in general. Some of the subject matter is at a mature level.
https://en.wikipedia.org/wiki/Broadway_Tunnel_(San_Francisco)
https://www.sfmta.com/projects/broadway-safety-improvement-project
https://www.sanfranciscostory.com/san-francisco-time-machine/
