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" "A superintendent of a road fifty miles in length can give its business his professional attention and may be constantly on the line engaged in the direction of its details; each person is personally known to him, and all questions in relation to its business are at once presented and acted upon; and any system however imperfect may under such circumstances prove comparatively successful. In the government of a five hundred miles in length a very different state exists. Any system which might be applicable to the business and extent of a short road would be found entirely inadequate to the wants of a long one. and I am fully convinced that in the want of system perfect in its details, properly adapted and vigilantly enforced, lies the true secret of their [the large roads’] failure; and that this disparity of cost per mile in operating long and short roads, is not produced by a difference in length, but is in proportion to the perfection of the system adopted.
Daniel Craig McCallum (21 January 1815, 1815 – 27 December, 1878) was an American railroad engineer and manager, credited for creating the first organizational chart for an American business.
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When the time-table is so arranged as to call for speed nearly equal to the full capacity of the engine, it is very obvious that the risks of failure in making time, must be much greater than at reduced rates, and when they do occur, the efforts made to gain time must be correspondingly greater and uncertain. A train whose prescribed rate of speed is thirty miles per hour, having lost five minutes of time, and being required to gain it, in order to meet and pass an opposing train at a station ten miles distant, must necessarily increase its speed to forty miles an hour; and a train whose rate of speed is 40 miles per hour, under similar circumstances, must increase its speed to 60 miles per hour.
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