Input variables used in the SD models
| Variable name | Value | Unit |
|---|---|---|
| Daily normal working hours | 8 | Hours |
| Baseline production throughput | 175 | Units/week |
| Total production crew size | 22 | Worker |
| Total worker-hrs (reinforcement) : Baseline | 448 | Worker-hrs/week |
| Total worker-hrs (formwork) | 364 | Worker-hrs/week |
| Total worker-hrs (concreting) | 154 | Worker-hrs/week |
| Total worker-hrs (finishing) | 56 | Worker-hrs/week |
| Total worker-hrs (crane operator) | 56 | Worker-hrs/week |
| Average normal labour rate (reinforcement) | 80 | AUD/hour |
| Average normal labour rate (formwork) | 85 | AUD/hour |
| Average normal labour rate (concreting) | 80 | AUD/hour |
| Average normal labour rate (finishing) | 75 | AUD/hour |
| Average normal labour rate (crane operator) | 120 | AUD/hour |
| Average overtime labour rate (r/f, formwork, concreting) | 120 | AUD/hour |
| Average overtime labour rate (crane operator) | 180 | AUD/hour |
| Average overtime labour rate (finishing) | 110 | AUD/hour |
| Reinforcement material cost: Baseline | 108,500 | AUD/week |
| Formwork material cost | 7,875 | AUD/week |
| Concreting material cost | 82,824 | AUD/week |
| Finishing material cost | 13,125 | AUD/week |
| Other material cost (grout tubes, inserts etc.) | 5,250 | AUD/week |
| Factory overheads | 5,700 | AUD/week |
| Management team salaries and O/H | 30,000 | AUD/week |
| Transport cost to sites | 9,460 | AUD/week |
| Material delivery cost to factory | 750 | AUD/week |
| Labour cost (loading) | 2,240 | AUD/week |
| Price per unit | 2,500 | AUD |
| Variable name | Value | Unit |
|---|---|---|
| Daily normal working hours | 8 | Hours |
| Baseline production throughput | 175 | Units/week |
| Total production crew size | 22 | Worker |
| Total worker-hrs (reinforcement) : Baseline | 448 | Worker-hrs/week |
| Total worker-hrs (formwork) | 364 | Worker-hrs/week |
| Total worker-hrs (concreting) | 154 | Worker-hrs/week |
| Total worker-hrs (finishing) | 56 | Worker-hrs/week |
| Total worker-hrs (crane operator) | 56 | Worker-hrs/week |
| Average normal labour rate (reinforcement) | 80 | AUD/hour |
| Average normal labour rate (formwork) | 85 | AUD/hour |
| Average normal labour rate (concreting) | 80 | AUD/hour |
| Average normal labour rate (finishing) | 75 | AUD/hour |
| Average normal labour rate (crane operator) | 120 | AUD/hour |
| Average overtime labour rate (r/f, formwork, concreting) | 120 | AUD/hour |
| Average overtime labour rate (crane operator) | 180 | AUD/hour |
| Average overtime labour rate (finishing) | 110 | AUD/hour |
| Reinforcement material cost: Baseline | 108,500 | AUD/week |
| Formwork material cost | 7,875 | AUD/week |
| Concreting material cost | 82,824 | AUD/week |
| Finishing material cost | 13,125 | AUD/week |
| Other material cost (grout tubes, inserts etc.) | 5,250 | AUD/week |
| Factory overheads | 5,700 | AUD/week |
| Management team salaries and O/H | 30,000 | AUD/week |
| Transport cost to sites | 9,460 | AUD/week |
| Material delivery cost to factory | 750 | AUD/week |
| Labour cost (loading) | 2,240 | AUD/week |
| Price per unit | 2,500 | AUD |
Source(s): Authors’ own creation
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