Drift, which is a function of the axial, shear, flexural and torsional behavior of each member of a building structure, is an important design consideration. The total drift at a point can be considered to be the sum of the axial, shear, flexure and torsional displacement components of each member in the building. The drift control module helps identify which members contribute the most to the drift at a point. The break-down of the member contribution to drift into the various displacement components such as joint, axial, shear, flexure and torsion helps identify what sectional properties of a member to change to arrive at an optimized size. The joint displacement represents the deformation in the rigid-end zones (panel-zones).