International Correspondence Schools · Scranton, Pa. : The Colliery engineer co. · leaf 539
klaid along the side of a street or highway, which may bewidened at the points requiring passing tracks. The formshown at C should always be adopted for tracks laid on thecenter line of streets. The extra room required for passingtracks is equally distributed on both sides of the main centerline of… … Fig. 5.38. turntable. Sometimes the switches are automatic, as shownin the figure, in which case all locomotives must enter the Yfrom the same end, viz., at a^ and leave at b. Usually,however, the switches are operated by hand levers and theY is entered from both directions. One special advantageof…
Railroad engineering
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