QUESTION

a) Draw the Critical Path Method (CPM) network diagram and highlight the critical path for activities shown in Table 1(a). Perform the CPM calculation using the forward pass and backward pass methods and complete Table 1(b).

b) Draw a resource profile (histogram) following the scenarios below and determine how to level the resources. Give your comments on the resource profile.

i ) Only 10 labourers available at any time

ii ) Only 8 labourers available, but a peak use of 10 labourers is allowed for one time (one day) only

TABLE 1 (a)

\fActivity Activity Description IPA* Duration (Days) Labour Excavation & A 4 foundation B SOG A 3 C Framing 10 D Plumbing E Electrical wiring Drywall m MOOOOL HVAC H Roof IN W N N W A W W N - Paint C HVAC Finish G, H K Flooring D, I L Electrical finish E, H M Punch list & cleanup / J, K, L 1