Chicago, IL: 1907 State Street (3 streetcar tracks)

A more general study of streetcars in Chicago

Glen Miller posted, if you follow the link, you can access full screen resolution
Chicago, 1907. "State Street south from Lake Street." At left, the Masonic Temple and Marshall Field department store. Photo by Hans Behm.

And Shorpy has even higher resolution. A Facebook comment observed "Amazing. Autos, street cars, horses all compete for the same space and no stop lights." But I could not find any autos. Nor a crossing gaurd. How did they determine right-of-way at the intersections?