  Properties of equilibrated nucleon system are studied within the
Ultra-relativistic Quantum Molecular Dynamics (UrQMD) transport model. The
UrQMD calculations are done within a finite box with periodic boundary
conditions. The system achieves thermal equilibrium due to nucleon-nucleon
elastic scattering. For the UrQMD equilibrium state, nucleon energy spectra,
equation of state, particle number fluctuations, and shear viscosity $\eta$ are
calculated. The UrQMD results are compared with both, statistical mechanics and
Chapman-Enskog kinetic theory, for a classical system of nucleons with
hard-core repulsion.
