A CASE STUDYTo demonstrate the four

A CASE STUDY
To demonstrate the four methods of schedule delay analysis discussed above, it is helpful to look at a specific case study. The schedule used in the case study is for a simple home construction project with an attached garage, which shares a wall with the house (see figure 1). The facts relevant to project delays in the case study are given below.
• The contractor encountered unforeseen rock at the start of week #2 while excavating the foundation, and was delayed 3 weeks. Before encountering rock, the contractor was on schedule.
• The owner stopped work on the house walls 2 weeks after the start because he decided he did not like the win-dows called for in the original design. The owner took 2 weeks to decide that the original windows were satisfactory, after all.
• The contractor’s framing subcontractor experienced financial problems and abandoned the job after working 2 weeks on the house and garage walls. At that time, both the house walls and the garage walls were 50 percent complete. It took 3 weeks for the contractor to get a new framer.
• The contractor did not order the garage doors until the end of week #11, which was 4 weeks later than the original late start date.
• The owner did not complete selecting finishes until the end of week #18, in¬stead of at the end of week #12 as planned.

• The contractor took 2 weeks longer than planned to complete the interior finishes.
• The contractor took 1 week longer than planned to complete the garage walls.
• When the garage doors arrived at the end of week #17 (already 4 weeks late because of the contractor’s late order), the owner changed his mind and requested different doors. It took 4 weeks to get the new doors.