. Handbook of railroad construction; for the use of American engineers. Containing the necessary rules, tables, and formulæ for the location, construction, equipment, and management of railroads, as built in the United States .. . RECONNOITRE. Fig. 12. 17. 35. If we wish to go from A to B, fig. 12 (a), we should of course Fig. 12 (a). take first thestraight line;but beingobliged toavoid the hillC, on arriv-ing at df, weshould nottry to recoverthat line at e, but proceed at once to B. Also as we are obliged to passthrough d, we ought to go directly to d and not by the wayof c; and the same idea
. Handbook of railroad construction; for the use of American engineers. Containing the necessary rules, tables, and formulæ for the location, construction, equipment, and management of railroads, as built in the United States .. . RECONNOITRE. Fig. 12. 17. 35. If we wish to go from A to B, fig. 12 (a), we should of course Fig. 12 (a). take first thestraight line;but beingobliged toavoid the hillC, on arriv-ing at df, weshould nottry to recoverthat line at e, but proceed at once to B. Also as we are obliged to passthrough d, we ought to go directly to d and not by the wayof c; and the same idea is repeated between A and fZ B. Few rules can be given in thechoice of routes. Practice only will enable the engineer tofind the best location for a railroad. 2*
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Keywords: ., bookcentury1800, bookdecade1850, booksubjectrailroadsdesignandco
