St. Louis & S. F. Ry. Co. v. Bridges

In the city of Memphis, appellant maintains and operates a large switchyard, called the Yale yard. This yard is what is known as a freight classification gravity yard, and is designed and used for breaking up incoming freight trains, and in assembling the several cars thereof into classified tracks, according to the ultimate destination of the respective cars. There are eighteen of such separate classification tracks, but for the purpose of this case tracks numbered eleven and twelve only are necessary to be particularly mentioned.

The general design of this yard is such that a switch engine…