Association of the Transportation Officers of the Pennsylvania Railroad

The Association of the Transportation Officers of the Pennsylvania Railroad was a professional organization whose membership was drawn from the Transportation (Operating) Department of the PRR's Lines East Organization. Its goal was to determine, through thorough investigation and frank discussion among those most closely involved, the best methods of operation that could be employed on the PRR.

This included the standardization of rules and equipment, the elimination of faulty practices, and the implementation of the most safe and economical modes of operation. The A.T.O. grew out of the same general movement to systematize the workings of the department that had produced the Grand Division arrangement in 1873. The General and Division Superintendents began meeting regularly to discuss operating problems in 1875, and on May 20, 1879, the A.T.O. was formed, complete with its own constitution and bylaws. However, it was allowed to lapse in 1884.

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