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Tue Apr 04 19:15:04 2017 1 The Project Gutenberg EBook of Transactions of the American Society of Civil Engineers, Vol.
LXX, Dec.
1910, by Beverly S.
Randolph This eBook is for the use of anyone anywhere at no cost and with almost no restrictions whatsoever.
You may copy it, give it away or re-use it under the terms of the Project Gutenberg License included with this eBook or online at www.gutenberg.org Title: Transactions of the American Society of Civil Engineers, Vol.
LXX, Dec.
1910 Locomotive Performance On Grades Of Various Lengths, Paper No.
1172 Author: Beverly S. Randolph Release Date: July 3, 2006 [EBook #18747] Language: English Character set encoding: ISO-8859-1 *** START OF THIS PROJECT GUTENBERG EBOOK AMERICAN SOCIETY OF CIVIL ENGINEERS *** Produced by Juliet Sutherland, Sigal Alon and the Online Distributed Proofreading Team at http:--www.pgdp.net AMERICAN SOCIETY OF CIVIL ENGINEERS INSTITUTED 1852 TRANSACTIONS Paper No.
1172 LOCOMOTIVE PERFORMANCE ON GRADES OF VARIOUS LENGTHS. BY BEVERLY S.
RANDOLPH, M.
AM.
SOC.
C.
E. WITH DISCUSSION BY MESSRS.
C.
D.
PURDON, JOHN C.
TRAUTWINE, JR., AND BEVERLY S.
RANDOLPH. In the location of new railways and the improvement of lines already in operation, it is now well recognized that large economies can be effected by the careful study of train resistance due to grades and alignment, distributing this resistance so as to secure a minimum cost of operation with the means available for construction. While engaged in such studies some years ago, the attention of the writer was attracted by the fact that the usual method of calculating the traction of a locomotive--by assuming from 20 to 25% of the weight on the drivers--was subject to no small modification in practice. Tue Apr 04 19:15:04 2017 2 In order to obtain a working basis, for use in relation to this feature, he undertook the collection of data from the practical operation of various roads.
Subsequent engagements in an entirely different direction ...





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