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Wellington believed that route and ruling grade were of far greater importance than curvature and accumulative grades. The Milwaukee, NP, and GN lines all had a ruling grade of 2.2%, so in that aspect they all come in even. The Milwaukee was slightly shorter than GN and much shorter than NP, so in that aspect we'll still call it even between Milwaukee and GN. Of course, it could be that Wellington was speaking of localized segments rather than a whole regional profile. <br /> <br />Just for fun, Wellington also believed that switchbacks were preferable to reverse curves for achieving elevation. Can you imagine modern trains seesawing their way up and down mountain divisions? But, what can you expect from a book published in the 1880's?
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