The goal of the project is to work out an innovative method of condition evaluation of road construction in the relation to the full life costs. It is a way of control of road design parameters, which are used in the designing program Layeps for more accurate analyse of multilayer half-space, which is used in the Czech Republic for road construction design. With respect to the necessity of the change of Technical recommendations for the road construction design, which is oriented on the determination of more accurate values of design moduli of base layers and subgrade, it will be necessary to compare the parameter found out in the laboratory and in-situ with non-destructive tests carried out by Falling Weight Deflectometer.