This mode entails removing the delays of each party from the
As-built program to establish their effects on the project completion
date (SCL 2002; Lovejoy 2004). There are two main ways by
which the delays can be removed (Trauner 1990). They are removing
all the delays at a go from a single as-built schedule (i.e., single
stage simulation) or removing the delays in stages from multiple
schedules (multistage simulation). The technique based on this
mode of simulation is the Collapsed As-built (Alkass et al.
1996; Zack 2001).