In this case, the owner’s delay of 5 days to Activity O and the contractor’s delay of 7 days to Activity N are not considered critical. Only the contractor’s delay of 8 days toActivity J, which is on the project then-critical path of A-J-K-L-M-F is considered to have an impact to the project completion date. The contractor delays Activity J for 8 days or 6.5 days beyond its ATF of 1.5 days. However, since the owner did not use any of the 1.5 days of ATF for the path A-J-K-L-M-F, the contractor is held responsible for the project delay of 5 days. Using Eq. (1) for the contractor, RDD=Min(5,8−1.5=5).