How many person days of overload are there for resource type X before recourse s

Question

How many person days of overload are there for resource type X before recourse smoothing?

Project C comprises the following activities, all activities are finish-to-start. There are sufficient of resource type Y to complete their activities as required but only 3 employees of resource type X. In order to resolve any resource overloads within the stated capacity: activity A is to be undertaken after activity D. activity E is to be undertaken after activity A. Assume that the project starts at time zero.

Explanation / Answer

The resource requirements per day, based on the assumption that all activities are starting at their earliest times and keeping in view the precedence relationships among the activities, are given as follows with the calculation of overloads for X resources.

The table is reworked as per the given conditions: A to be undertaken after D and E to be undertaken after A

Resource requirement (day-wise) based on earliest start times of activities Activity 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 Total A X X X 9 B X X X X 8 C Y Y Y Y Y 10 D X X X X X X 18 E X X 6 F Y Y Y 9 G Y Y Y Y Y Y 12 H Y Y Y Y 16 I Y Y 8 Total X persons 5 5 5 2 6 6 3 3 3 3 Overload X 2 2 2 3 3

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