The effects of various geometrical parameters on effective diffusive, convective and electroconvective transport coefficients are studied by using models of constricted and expanded pores. The analysis of these simple pores offers insight into the transport behavior of macromolecules in media consisting of anisotropic aligned pores. A number of cases are analyzed including hydrodynamic flow, hindered transport with hydrodynamic flow, and electrophoretic transport with and without hindrance. The effects of the geometrical parameters of the model pores on the effective transport parameters are determined. The implications of changes of these geometrical parameters, applied electrical fields, and bulk flow rates on separations are illustrated using the time required to separate a binary mixture of solutes for specified resolutions. The results show that by appropriately selecting the flow rate in the case of hydrodynamic flow or the electrical field strength for the case of electrophoresis an optimum or minimum time of separation can be determined for the separation of two comparably sized molecules with sizes close to those of the narrower part of the pore.