automatically without opening the Goal Seek menu every time inputs change. Translating the Structural Number into Layer Thicknesses
= (C2 * 0.45) + 9.36 * LOG10(A20+1) - 0.20 + (LOG10(C5 / (4.2-1.5)) / (0.40 + 1094/((A20+1)^5.19))) + 2.32 * LOG10(5000) - 8.07 aashto flexible pavement design excel spreadsheet
log10(W18)=ZR×S0+9.36×log10(SN+1)−0.20+log10[ΔPSI4.2−1.5]0.40+1094(SN+1)5.19+2.32×log10(MR)−8.07log base 10 of open paren cap W sub 18 close paren equals cap Z sub cap R cross cap S sub 0 plus 9.36 cross log base 10 of open paren cap S cap N plus 1 close paren minus 0.20 plus the fraction with numerator log base 10 of open bracket the fraction with numerator cap delta cap P cap S cap I and denominator 4.2 minus 1.5 end-fraction close bracket and denominator 0.40 plus the fraction with numerator 1094 and denominator open paren cap S cap N plus 1 close paren to the 5.19 power end-fraction end-fraction plus 2.32 cross log base 10 of open paren cap M sub cap R close paren minus 8.07 Because the SNcap S cap N automatically without opening the Goal Seek menu every