Mathematical model optimisation of the highway segment project with bridges

The mathematical model of the project of a highway segment profile according to which the profile outside of a bridge and a tunnel is described by a polynomial of the fourth degree is constructed. Polynomial factors are criterion function variables. Last has only one criterion ? project cost. Criterion function is made so, that it leaves the sum of volumes of a tunnel and dredging equal to volume of an embankment for any values of variables of criterion function. The system of restrictions notes the State building norms of Ukraine.