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Feb, 8, 1983 <br /> <br />150 <br /> <br />140 <br /> <br />130 <br /> <br />120 <br /> <br />110 <br /> <br />100 <br /> <br />90 <br /> <br />80 <br /> <br />70 <br /> <br />6O <br /> <br />5O <br /> <br />4O <br /> <br />3O <br /> <br />20 <br /> <br />10 <br /> <br />m.p.h. <br /> <br />Oq ~t' '-O CO CD ~ <br />CD CD 0 0 0 CD <br /> <br />$uperelevadon Rate - Ft./Ft. <br /> <br />CURVE RADII <br /> <br />BIKEWAYS <br /> <br /> V2 tanO+ f <br />plot of: -- = <br /> gR 1 -ftan8 <br /> <br />Where: V = velocity, ft./s~c. <br /> g = acceleration due to gravity, ft./sec.2 <br /> R = radius Of curvature, ft. <br /> f = coefficient of friction on dry pavement = 0.4 <br /> (based on m .a4dmum 20° lean) <br /> tan 0 = superelevation rate, ft./ft. <br /> <br />I <br />! <br />I <br />I <br />I <br />I <br /> <br /> Figure A <br /> <br />AND SUPERELEVATIONS <br /> <br /> <br />