Example

Given the information below, design the pavement structure

design reliability $=90\%$

Overall standard deviation $=0\mathrm{.}35$

Accumulated traffic $(W_{18})=10$ million

design serviceability loss $=2\mathrm{.}0$

$\backslash$table$[[$Material$,$Modulus $($psi$),$drainage Coefficient $($m$)],[$Asphalt Concrete,$400,000,],[$Crushed stone Base,$30,000,0\mathrm{.}80],[$Granular subbase,$14,000,0\mathrm{.}70],[$Roadbed $($subgrade$),5,000,-]]$