AMOS (archive of many outdoor scenes): How to catch a bike lane
366,726,840 images and counting
That is the number of automatically captured images stored in the AMOS database at Washington University in St. Louis.
An example of creative use of existing databases and getting them to tell stories they weren't designed to capture is "Emerging technologies: webcams and crowd-sourcing to identify active transportation," work by Hipp JA, Adlakha D, Eyler AA, Chang B, Pless R, recently published in the American Journal of Preventive Medicine. They used archived AMOS images from Washington, D.C. traffic cameras to measure bike use before and after installation of bike lanes at an intersection in DC (see attached article).
AMOS has archives of cameras in at least six California counties.