The Old Darwin has a tool to calculate the Mr- and k-effective, will PAVEXpress have the same capability?
For the initial version of PAVEXpress, the design team decided to reference conversion tables. The next versions of PAVEXpress may include automating the conversion tables for estimating subgrade resilient modulus from CBR and R-values. For the calculation of modulus of subgrade reaction or k-value based on the subgrade Mr, that may be provided in future versions of PAVEXpress as well.