Staged Construction Analysis can be performed using STAAD.pro 2007 using the member INACTIVE specification. Staged construction analysis is particularly important in long suspension bridges where stability of the structure must be evaluated at critical stages of construction. The members highlighted in red are the active members. The figure at the bottom of each page shows the effect (i.e. deflection and moment diagrams are shown) of the construction on the column members on the left. In this example, members are switched on or off depending on the load case.