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N <br /> s <br /> DIRECTIONS FOR USE OF TABLES s <br /> Ya O <br /> TABLE No. 1. A <br /> Distance of slope stake from side or shoulder <br /> stake for any width roadway, slope 1Y2 to 1. Twsr.r II If ground is nearly level, the cut or TRlcoxoMErxlc rroItMUL�. <br /> fill at side <br /> stake is located by the double entry method in A t MOR—OB c�PON= t oPL <br /> left column and top row. The number in bodyam A=c•�i—a=ow B=LP <br /> of table in same row and column gives distance b <br /> from side stake to slope stake. If ground is not <br /> ow A—b=-!L=b—sin s=OL <br /> level estimate the difference in elevation between <br /> the side stake and slope stake,lower target by this t'II A s b—ON on =MQ=oot B=MQ <br /> amount if cut, elevate if fill. Add this amount oot A=N NT =NT—tan B—NT � <br /> to cut or fill and find distance in table. Set up OQ OQ <br /> rod at this point, and line of sight should cut °B0 A= ON=i=OQ_°°o B=OQ <br /> OT <br /> target. If it does not make the slight adjustment m A—o ®OT=we B—OT <br /> necessary. LM <br /> vers Am--=LM=covers B# <br /> TABLE No. 9. O OP—LP <br /> To find Tangent and External for curve of O0°er"A OP =OP—LP=vers B <br /> any other degree, divide by degree of curve and exm A=PQ—coenn B <br /> add correction found in column of corrections. °Onno A PT=exwo B <br /> sin 14A= I 1—CosA CW %A—� 1+ A <br /> Degree of curve with a given I may be found •VI 2 2 <br /> by dividing tangent, (or external), opposite I by sin 2A=2 sin A ooe A oos 2 A= n A—sin'A <br /> given tangent, (or external). Law of Lines ,A sin B — C Ci <br /> _ B sin <br /> The distance from a point on the tangent to Law of Coe rm ;e2 a s'+b'—2 ab oos C <br /> the curve is very nearly the square of the tangent Lsw of Tangents °'+— (p±B)) <br /> lenth divided by twice the radius. <br /> g <br />