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Homework answers / question archive / The network shown in Figure below is a subnetwork for part of the construction of a canal project to alleviate flood waters during the monsoon season
The network shown in Figure below is a subnetwork for part of the construction of a canal project to alleviate flood waters during the monsoon season. Activities A and G are scheduled to begin on Days 180 and 182, respectively.
(a) Perform the basic scheduling computations based on mean durations.
Compute total floats for the activities and tabulate in the table provided in
Figure 1A, if the milestones for completing D and H are 217 and 220,
respectively. Note that for some activities, the estimates for a, m and b are
provided instead of the mean.
(b) What is the probability of completing the subnetwork by day 217 given that A
and G start as planned (compute for the longest path only)?
(c) Activities B, C and H require a common dozer so that these activities cannot
be performed concurrently. If the dozer for H is required for a continuous 14
days which can be scheduled anytime within the duration of the activity, how
should the dozer be allocated to these activities so that the early finish of the
subnetwork is least delayed? (i.e. indicate the days that the dozer will be used
for these activities.). Explain how the early finish of the network is impacted.
