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1 <br />�Y <br />II TABLE I. - Tangents and Externals to a 1 Curve. <br />Chord =100 ft. <br />Int. <br />Angle <br />Tangent <br />External <br />Int'. <br />Angle' <br />Tangent <br />g <br />External <br />Int. <br />Angle <br />Tangent <br />External <br />1° <br />50.00 <br />.22 <br />•'B° <br />•400.GG <br />13.99 <br />. 15° <br />754.32 <br />49.44 <br />10' <br />53.34 <br />.30 <br />10' <br />409.03 <br />14.58 <br />10' <br />762.80 <br />50.55 <br />.0 <br />66.07 <br />.39 <br />20 <br />417.41 <br />15.18 <br />20 <br />771.29 <br />51.68 <br />30 <br />75.01 <br />A9 <br />30 <br />425.79 <br />.. 15.80 <br />."30 <br />779.77 <br />52.82 <br />40 <br />83.34 <br />GL <br />40 <br />434.17 <br />16.43 <br />40 <br />788.26 <br />53.97 <br />50 <br />91.68 <br />.73 <br />.50 <br />442.55 <br />17.07 <br />50 <br />796.75 <br />55.13 <br />Z. <br />100:01 <br />S7" <br />9 <br />450.93 <br />17.72 <br />1.6 <br />805.25 <br />56.31 <br />10 <br />'108.35- <br />1.02 <br />10 <br />459:32 <br />•18.38 <br />10 <br />813.75 <br />57.50 <br />20 <br />116:68 <br />1:19 <br />20 <br />467.71 <br />19.06 <br />20 <br />822:25 <br />58.70 <br />30 <br />125:02. <br />1.30 <br />30 <br />476.10 <br />19:75 <br />30 <br />830:76 <br />59.91 <br />40 <br />L33.36 <br />1.55 <br />`40 <br />484.49 <br />20.45 <br />40 <br />' 839.27 <br />61.14 <br />50 <br />141.70 <br />1.75 <br />50 <br />492.88 <br />21.16 <br />50 <br />847.78 <br />62.38 <br />'S <br />150.04 <br />1.96 <br />10 <br />501.28 <br />21.89' <br />17 <br />856.30 <br />63.63 <br />LO <br />158.38. <br />2.19 <br />10 <br />509.68 <br />22.62 <br />10 <br />864.82 <br />64.90 <br />20 <br />IG6..72 <br />2.43 <br />20 <br />518.08 <br />23.38 <br />20, <br />873.35 <br />66.18 <br />30 <br />ITS. OG <br />2.67 <br />30 <br />526.48 <br />24.14 <br />30 <br />881:88 <br />67.47 <br />40 <br />183.40 <br />2.93 <br />40'. <br />534.89 <br />24.91 <br />40 <br />890.41 <br />68.77 <br />50 <br />191.74 <br />3.21 <br />50 <br />543.29 <br />25.70 <br />50 <br />898.95 <br />70.09 <br />a <br />200.08 <br />3.49 <br />it <br />551.70- <br />26.50 <br />18 <br />907.49 <br />71.42 <br />LO <br />208.43 <br />3.79 <br />30 <br />560.11 <br />27.31 <br />10 <br />916.03 <br />72.76 <br />20 <br />216.77 <br />4!10 <br />20 <br />568.53 <br />28.14 <br />20 <br />924.58' <br />74.12 <br />30 <br />225.12 <br />4.42 <br />' 30 <br />576.95 <br />28.97 <br />30 <br />933.13 <br />75.49 <br />40 <br />233.47 <br />4.76 <br />40 <br />" 585.36 <br />29.82 <br />40 <br />941.69 <br />76.86 <br />50 <br />241.81 <br />5.10 <br />50 <br />593.79 <br />30.68 <br />50 <br />950.25 <br />78.26 <br />6 <br />250.16 <br />5.46 <br />12 <br />602.21 <br />31.56 <br />19 <br />958.81 <br />79.67 <br />10 <br />238.51 <br />5.83 <br />10 <br />G10.64 <br />32.45 <br />10 <br />967.38 <br />81.09 <br />20 <br />266. SG <br />6.21 <br />.20 <br />619.07 <br />33.35 <br />20 <br />975.96 <br />82.53 <br />30 <br />275.21 <br />6.61 <br />30 <br />627.50 <br />34.26 <br />30 <br />984.53 <br />83.97 <br />40 <br />283.57 <br />7.01 <br />40 <br />635.93 <br />35.18 <br />40 <br />993.12 <br />85.43 <br />50 <br />291.92 <br />7.43 <br />50 <br />644.37 <br />36.12 <br />50 <br />1001.7 <br />86.90 <br />a <br />30q.28 <br />7.86 " <br />13 <br />G52.81 <br />37.07 <br />20 <br />1010.3 <br />88:39 <br />30 <br />308.64 <br />8.31 <br />10 <br />661.25 <br />38.03 <br />10 <br />1018.9 <br />89.89 <br />20 <br />316.99. <br />8.76 " <br />20 <br />6G9.70 <br />39.01 <br />20 <br />1027.5 <br />91.40 <br />30' <br />325.35 <br />9.23 <br />30 <br />G78.15 <br />39.99 <br />30 <br />1036.1 <br />92.92 <br />40 <br />333:71 <br />9.71 <br />40 <br />68G.60 <br />40.99 <br />40 <br />1044.7 <br />94.46 <br />50 <br />'342.08 <br />10.20 <br />50 <br />695.06 <br />42.00 <br />50 <br />1053.3 <br />96.01 <br />1 <br />350.44 <br />10.71 <br />14 <br />703.51 <br />43.03' <br />21 <br />1061.9 <br />97.57 <br />10 <br />338.81 <br />11.22 <br />10 <br />711.97 <br />44.07 <br />10 <br />1070.6 <br />99.16 <br />20 <br />367.17 <br />11.75 <br />20 <br />720.44 <br />45.12 <br />20 <br />1079.2 <br />100.75 <br />30 <br />-375.54 <br />12.29 <br />30 <br />728.90 <br />.46.18 <br />30 <br />1087.8 <br />102.35 <br />40 <br />333.91 <br />12.85 <br />40 <br />737.37 <br />47.25 <br />40 <br />1096.4 <br />103.97 <br />50 <br />392.28 <br />13.41 <br />50 <br />745.85 <br />48.34 <br />50 <br />1105.1 <br />105.60 <br />Corrections to be Added (T =Tangent. E=External.) <br />IML Cuve 5° <br />Anile <br />10° <br />15° 20° '25' 30° <br />1 35° 1 40° 4S°. 50° 1 55° 1 60° <br />65° <br />70° <br />5° T=.02 <br />.03 <br />.05 .06 .08 .10 <br />.11 :13 .15 .16 .18 -.20 <br />.21.23 <br />107.24 <br />E=.000 <br />.000 <br />.001 .001 .002 .002 <br />.002 .003 .003 .004 .004 .004 <br />.005 <br />.005 <br />30° =•03. <br />.06 <br />.09 .13• .16 .19 <br />.22 .25' .28 .31 .34 .38 <br />.42 <br />.46 <br />E=.001 <br />.003 <br />.004 '.006 .007 .008 <br />.009 .011 .012 ..014 .015 .017 <br />.018 <br />.020 <br />l5o T=.04 <br />.10 <br />.14 .19 .24 .29 <br />.34 .39 .45 .51 .53 .58 <br />.63.68' <br />300.6 <br />8-.003 <br />.007 <br />.010 .014 .018 .023 <br />.027 .029 .032 .035 .039 .043 <br />.047 <br />.051 <br />ZOo T=.06 <br />.13 <br />.19 .26 .32 .39 <br />.45 .51 .58 .65 .72 .79 <br />.84 <br />.90 <br />�E=:000 <br />.011 <br />-.017 .022 .028 .034 <br />.038 .045 .051 .057 .063 1.070 <br />.076 <br />.083 <br />Z5o T>.08 <br />E=.009 <br />.16 <br />.24', .33 .40 .49 <br />.58 .67 .75 .83. .90 .99 <br />1.06 <br />1.14 <br />50 <br />.018 <br />.027 .035 .046 .056 <br />.065 .074 .083 ..093 .100 .120 <br />.127 <br />335 <br />TAIiLE I. - Tangents and Externals to a 1° Curve. III <br />Chord =100 f t. <br />Int. <br />AngleAngle <br />Tangent, <br />External <br />Int' <br />Tangent <br />External <br />Int. <br />Angle <br />Tangent <br />External <br />22° <br />1113.7 <br />107.24 <br />29° <br />1481.8 <br />188.51 <br />36° <br />1861.7 <br />294.9 <br />10' <br />1122.4 <br />108.90 <br />10' <br />1490.7 <br />190.74 <br />10' <br />1870.9 <br />297.7 <br />20 <br />1131.0 <br />110.57 <br />20 <br />1499:6 <br />192.99 <br />20 <br />1880.1 <br />300.6 <br />3U <br />1139.7, <br />112.25 <br />30 <br />1508.5 <br />195.25 ` <br />30 <br />1889.4 <br />303.5 <br />40 <br />1148.4 <br />113.95 <br />40 <br />I517.4 <br />197.53 <br />40 <br />'1898.6 <br />306.4 <br />5U <br />1157.0 <br />115.66 <br />50 <br />1526.3 <br />199.82 <br />50 <br />1907.9 <br />309.3 <br />23 <br />1165.7 <br />117.38" <br />30 <br />1535.3 <br />202.12 <br />37 <br />1917.1 <br />"312.2 <br />10 <br />1174.4 <br />119.12 <br />10 <br />1544.2 <br />204.44 <br />10 <br />1926.4 <br />315.2 <br />20 <br />1183.1 <br />120.87 <br />20 <br />1553.1 <br />206.77 <br />20 <br />1935.7 <br />318.1 <br />30 <br />1191.8 <br />122.63 <br />30 <br />1562.1 <br />209.12 <br />30 <br />1945.0 <br />321.1 <br />40 <br />1200:5 <br />124.41 <br />40 <br />1571.0 <br />211.48 <br />40 <br />1954.3 <br />324.1 <br />50 <br />1209.2 <br />126.20 <br />50 <br />1580.0 <br />213.86 <br />50 <br />1963.6 <br />327.1 <br />24 <br />1217:9 <br />128.00 <br />31 <br />1589.0 <br />216.3 <br />38" <br />1972.9, <br />330.2 <br />10 <br />1226.6 <br />129.82 <br />10 <br />1598.0 <br />218.7 <br />10 <br />1982.2. <br />333.2 <br />20 <br />1235.3 <br />131.65 <br />20 <br />1606.9 <br />221.1 <br />20 <br />1991.5 <br />'336:3 <br />30 <br />1244.0 <br />133.50 <br />30 <br />1615.9 <br />223.5 <br />30 <br />2000:9 <br />-.339.3 <br />40 <br />1252.8 <br />135.35 <br />40 <br />1624.9 <br />226.0 <br />40 <br />2010.2 <br />- 342.4 <br />50 <br />1261.5 <br />137.23 <br />' 50 <br />1633.9 <br />228.4 <br />50 <br />2019.6, <br />345.5 <br />25 <br />1270.2 <br />139.11 <br />32 <br />1643.0 <br />230.9 <br />39 <br />2029.0 <br />348.6 <br />10 <br />1279.0 <br />141.01 <br />10 <br />1652.0 <br />233.4 <br />10 <br />2038.4 <br />351.8 <br />20 <br />1287.7 <br />142.93 <br />20 <br />1661.0 <br />235.9 <br />20 <br />2047.8 <br />354.9 <br />30 <br />1296.5 <br />144.85 <br />30 <br />1670.0 <br />238.4 <br />30 <br />2057.2 <br />358.1 <br />40 <br />1305.3 <br />146.79 <br />40 <br />1679.1 <br />241.0 <br />40 <br />2066.6 <br />361.3 <br />50 <br />1314.0 <br />148.75 <br />50 <br />1688.1 <br />243.5 <br />50 <br />2076.0 <br />364.5 <br />26 <br />1322.8" <br />150.71 <br />33 <br />1697.2 <br />246.1 <br />40 <br />2085.4 <br />367.7 <br />10 <br />1331.6 <br />152.69 <br />10 <br />1706.3 <br />248.7 <br />10 <br />•2094.9 <br />371.0 <br />20 <br />1340.4 <br />154.69 <br />20 <br />1715.3 <br />251.3 <br />20 <br />2104.3 <br />374.2 <br />30 <br />1349.2 <br />156.70 <br />30 <br />1724.4 <br />253.9 <br />30 <br />2113.8 <br />377.5 <br />40 <br />1358.0 <br />158.72 <br />40 <br />1733.5 <br />256.5 <br />40 <br />2123.3 <br />380.8 <br />50 <br />1366.8 <br />160.76 <br />50 <br />1742.6 <br />259.1 <br />50 <br />2132.7 <br />384.1 <br />27 <br />1375.6 <br />162.81 <br />34 <br />1751.7 <br />261:8 <br />41 <br />2142.2 <br />387.4 <br />10 <br />1384.4' <br />164.86 <br />10 <br />1760.8 <br />264.5 <br />10 <br />2151.7 <br />390.7 <br />20 <br />1393:2 <br />166.95 <br />20 <br />1770.0 <br />267.2 <br />20 <br />2161.2 <br />394.1 <br />30 <br />1402.0 <br />1G9.04 <br />30 <br />1779.1 <br />269.9 <br />30 <br />2170.8 <br />397.4 <br />40 <br />1410.9 <br />171.15 <br />40 <br />1788.2 <br />272.6 <br />40 <br />2180.3 <br />400.8 <br />50 <br />1419.7 <br />173.27 <br />50 <br />1797.4 <br />275.3 <br />50 <br />2189 9 <br />.404.2 <br />28 - <br />1428.6 <br />175.41 <br />35 <br />1806.6 <br />278.1 <br />42 <br />2199.4 <br />407.6 <br />10 <br />1437.4 <br />177.55 <br />10 <br />1815.7 <br />280.8 <br />10 <br />2209.0 <br />411.1 <br />20 <br />.1446.3 <br />179.72 <br />20 <br />1824.9 <br />283.6 <br />20 <br />.2218.6 <br />414.5 <br />'30 <br />1455.1 <br />181.89 <br />30 <br />1834.1. <br />286.4 <br />30 <br />2228.1 <br />418.0 <br />40 <br />1464.0 <br />184.0840 <br />1843.3 <br />289.2 <br />40 <br />2237.7 <br />421.4 <br />50 <br />1472.9 <br />1 186.29: <br />. 50 <br />1852.5 <br />1 292.0 <br />50 <br />2247.3 <br />425.0 <br />Corrections to be Added (T -Tangent. E=External.) <br />Int. <br />Angle <br />Curve 5' 10° <br />15° <br />20° <br />25° 30° <br />35° 40° 45° 50° 1.55- 1 601 60 70° <br />20° <br />T=.06 .13 <br />.19 <br />.26 <br />.32 .39 <br />.45 .51 .58 65 .72 .79 .84 .90 <br />E=.006 .011 <br />.017 <br />.022 <br />.028 .034 <br />".038 .045 .051 .057 .063 .070 .076 .083 <br />25o <br />T=.08 .16 <br />.24 <br />.33 <br />.40 ..49 <br />.58 .67 .75 .83 .90 .99 1.06 1.14 <br />E =.009 .018 <br />.027 <br />'.036 <br />.046 .056 <br />.OG5 .074 .083 .093 .106 .120 .127 .135 <br />o <br />30 " <br />T=.10 .19 <br />" <br />.29 <br />.39. <br />.49 .59 <br />.69 '.79 .89 .99 1.09 1.20 1.29 1.39 <br />E=.013 .025 <br />.038 <br />.051 <br />.065 .078 <br />.090 •.103 .118 .129 .149 .170 .179 .188 <br />350 <br />T=.11 .22 <br />.34.47 <br />'.58 .69 <br />.80 .93 1.05 1.17 1.29 1.42 1.54 1.88 <br />E=.018 .035 <br />.054 <br />.072 <br />.086 .109 <br />.131 .153 .175 .197 .213 .230 .247 264 <br />400 <br />T=.13 .26 <br />.40.53 <br />.67 .80 <br />.93 1.06 1.20 1.34 1.49 1.64 1.79 1.94 <br />E=.023 .046 <br />T=.15 .30 <br />.070 <br />.093 <br />.117 .141 <br />.172 .203 .234 .265 .277 .290 .315 .341 <br />.44 <br />.60 <br />.76 " .91 <br />11.06 1.21 1.37 1.52 1.70 1.87 2.04 2.21 <br />.45' <br />E=.030, ,.060 <br />.093 <br />.119 <br />.153 .184 <br />.216 .254 .289 .325 .351 .378 .411 .445 <br />