Mathematics of the Paper Location of a Railroad
Mathematics of the Paper Location of a Railroad
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In our eReader you can find the full English version of the book. Read Mathematics of the Paper Location of a Railroad Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book Mathematics of the Paper Location of a Railroad
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We now scale the map for a rough check on these computed bearings and distances.
4. COMPUTE CENTRAL, ANGLES OF CURVES. It is evident from the map that the central angle for curve No. 1 is Ai = ^ P]VI + ^v!V 2 = 63 39 ' + 45 58/ = 109 37/ ; and the central angle for curve No. 2 is Aa = ^Vj + ^V 2 PC 3 = 45 58 ' + 78 36/ = 124 34/ - We roughly check these values by scaling the map with the protractor.
5. COMPUTE TANGENT - DISTANCES OP CURVES. Using a "table of tangent-distances for a 1. Curve" we... find the tangent-distance for curve No. 1 is Ti = 1, 355; and for curve No. 2, T 2 = 1, 364.
We obtain a rough check on these by scaling. If in any case the value of A is beyond the limits of the table, of course the tangent-distance must be computed from the formula: T = R tan A/2.
6. COMPUTE CURVE LENGTHS. Length of curve is equal to one hundred times the ratio of central angle to degree of curve.
Length of curve No. 1 is Lj 100 Ai / I>i = 100 (109 370/6 = 100 (109. 62) / 6 = 1, 827.
8 Length of curve No.
What to read after Mathematics of the Paper Location of a Railroad?
You can find similar books in the "Read Also" column, or choose other free books by J C L John Charles Lounsbury Fish to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
We now scale the map for a rough check on these computed bearings and distances.
4. COMPUTE CENTRAL, ANGLES OF CURVES. It is evident from the map that the central angle for curve No. 1 is Ai = ^ P]VI + ^v!V 2 = 63 39 ' + 45 58/ = 109 37/ ; and the central angle for curve No. 2 is Aa = ^Vj + ^V 2 PC 3 = 45 58 ' + 78 36/ = 124 34/ - We roughly check these values by scaling the map with the protractor.
5. COMPUTE TANGENT - DISTANCES OP CURVES. Using a "table of tangent-distances for a 1. Curve" we... find the tangent-distance for curve No. 1 is Ti = 1, 355; and for curve No. 2, T 2 = 1, 364.
We obtain a rough check on these by scaling. If in any case the value of A is beyond the limits of the table, of course the tangent-distance must be computed from the formula: T = R tan A/2.
6. COMPUTE CURVE LENGTHS. Length of curve is equal to one hundred times the ratio of central angle to degree of curve.
Length of curve No. 1 is Lj 100 Ai / I>i = 100 (109 370/6 = 100 (109. 62) / 6 = 1, 827.
8 Length of curve No.
What to read after Mathematics of the Paper Location of a Railroad?
You can find similar books in the "Read Also" column, or choose other free books by J C L John Charles Lounsbury Fish to read onlineMoreLess
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