. The elements of railroad engineering . tal Latitudes fromStation 1. Total Departures fromStation 1. 1 ft. ft. + ft. + ft. 3 + ft. + ft. 4 + ft. + ft. 5 + ft. + ft. 755 The platting of the courses is as follows: On the merid-ian ^V 5, Fig. 332, take a point which call Sta. 1. The totallatitude of Sta. 2 is + 240 feet, and, as it is a plus latitude,it must be scaled off on the meridian above Sta. 1, locating 756 MAPPING. the point yi. The total departure of Sta. 2 is -f departure will therefore be to the right of t
. The elements of railroad engineering . tal Latitudes fromStation 1. Total Departures fromStation 1. 1 ft. ft. + ft. + ft. 3 + ft. + ft. 4 + ft. + ft. 5 + ft. + ft. 755 The platting of the courses is as follows: On the merid-ian ^V 5, Fig. 332, take a point which call Sta. 1. The totallatitude of Sta. 2 is + 240 feet, and, as it is a plus latitude,it must be scaled off on the meridian above Sta. 1, locating 756 MAPPING. the point yi. The total departure of Sta. 2 is -f departure will therefore be to the right of the merid-ian N S. At A, erect a perpendicular to the meridian, andupon it scale off the total latitude feet, locating Sta. line joining Stas. 1 and 2, i. e., the first course, willhave a bearing of N 10^° E. Its length, viz., 250 feet, wewrite on the plat, the figures reading in the same directionin which the line is being run. Total Lat.+ Lat.+ Total Lat.+246 T(rtalLat.+ Total Jkjk+^C Total Fig. .332. The total latitude of Sta. 3 is + feet, which we scaleoff on the meridian above Sta. 1, locating the point B, andon a perpendicular to the meridian at B, we scale off the totaldeparture of Sta. 3, which is + feet, locating Sta. line joining Stas. 2 and 3 has a bearing of N 41f ° E,and length of 123 feet. The total latitude of Sta. 4 is+ feet, which we scale off on the meridian above Sta. i,locating the point C, where we erect a perpendicular to themeridian and upon it scale off the total departure of Sta. 4, MAPPING. 757 viz., + feet, locating Sta. 4. The line joining Stas. 3and 4 will have a bearing of N 84|-° E, and a length of 215 total latitude of Sta. 5 is-|- feet, which we scaleoff on the meridian locating the point D^ where we erect aperpendicular to the meridian and upon it scale off the totaldeparture of Sta. 5, viz., -| ft., locating that line joining Stas.
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
