Manpower Allocation of Work Activities for Producing Precast Components: Empirical Study in Taiwan
Abstract
1. Introduction
2. Literature Review
2.1. Precast Production Management Research
2.2. Human Resource Management in Precast Research
3. Data Collection and Selection
4. Rough Set Enhanced K-Nearest Neighbor (KNN)
5. Results and Discussion
6. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
References
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Project Type | Beams | Girders | Columns | |||
---|---|---|---|---|---|---|
Project Quantity | Components Quantity | Project Quantity | Components Quantity | Project Quantity | Components Quantity | |
High-tech plant | 17 | 10,701 | 20 | 10,532 | 19 | 10,532 |
Residential building | 4 | 2759 | 2 | 778 | 4 | 778 |
Shopping mall | 4 | 2855 | 5 | 2672 | 4 | 2672 |
School and Office building | 8 | 3243 | 8 | 2749 | 7 | 2749 |
Total | 33 | 19,558 | 35 | 16,731 | 34 | 18,868 |
Components | Beams | Girders | Columns | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Attribute No. | Attribute | Maximum | Minimum | Average | Standard Deviation | Maximum | Minimum | Average | Standard Deviation | Maximum | Minimum | Average | Standard Deviation |
1 | Cleaning the steel mold | 31.9 | 19.02 | 24.652 | 2.472 | 25.97 | 17.76 | 22.246 | 1.893 | 27.95 | 18.05 | 23.274 | 2.352 |
2 | Assembling modules | 27.87 | 12.91 | 18.507 | 3.267 | 27.12 | 13.02 | 18.892 | 3.589 | 25.98 | 13.02 | 18.823 | 2.962 |
3 | Lofting | 17.95 | 2.01 | 9.152 | 4.616 | 19.32 | 2.04 | 10.324 | 4.713 | 13.91 | 2.01 | 6.461 | 3.481 |
4 | Dipping the steel rod cage | 32.14 | 15.48 | 23.089 | 2.984 | 29.86 | 14.82 | 21.678 | 3.145 | 44.95 | 22.02 | 32.943 | 5.686 |
5 | Placing the wooden panels | 55.68 | 21.95 | 35.859 | 9.106 | 54.70 | 19.05 | 27.939 | 9.992 | 105.91 | 17.05 | 40.766 | 29.524 |
6 | Checking before pouring | 19.93 | 8.89 | 13.394 | 2.654 | 20.50 | 8.83 | 14.124 | 3.007 | 22.94 | 8.06 | 13.898 | 3.994 |
7 | Concrete pouring | 19.97 | 14.01 | 16.081 | 1.202 | 20.46 | 12.06 | 15.191 | 1.41 | 35.97 | 20.08 | 27.678 | 3.696 |
8 | Fixture removal | 46.26 | 35.04 | 39.649 | 2.093 | 39.92 | 25.13 | 31.454 | 2.878 | 67.95 | 41.11 | 52.654 | 6.637 |
9 | Concrete maintenance operations | 14.95 | 8.04 | 10.866 | 1.34 | 15.15 | 9.02 | 11.268 | 1.311 | 16.95 | 10.02 | 13.108 | 1.633 |
10 | Removing the mold | 29.76 | 10.96 | 17.555 | 4.083 | 24.76 | 9.52 | 15.932 | 3.58 | 10.99 | 3.02 | 6.482 | 2.301 |
11 | Stripping | 19.12 | 9.17 | 13.438 | 2.071 | 17.84 | 8.71 | 12.915 | 1.95 | 21.99 | 13.04 | 17.149 | 1.798 |
12 | Component repair | 63.86 | 20.12 | 38.25 | 11.76 | 69.72 | 20.22 | 41.422 | 12.852 | 91.87 | 55.08 | 70.859 | 9.946 |
13 | Inspection of finished components | 24.18 | 9.75 | 15.599 | 2.93 | 18.82 | 8.04 | 12.044 | 2.253 | 19.95 | 9.05 | 14.355 | 2.411 |
14 | Warehouse storage | 23.02 | 15.69 | 19.664 | 1.276 | 22.89 | 14.71 | 19.394 | 1.258 | 24.98 | 16.01 | 20.796 | 2.028 |
∩# | Pos.Reg. | SC | Attribute | Reductions |
---|---|---|---|---|
1 | 1 | 1 | 11 | attr1, attr2, attr5, attr6, attr7, attr8, attr10, attr11, attr12, attr13, attr14 |
2 | 1 | 1 | 11 | attr1, attr2, attr5, attr6, attr7, attr8, attr9, attr10, attr11, attr12, attr13 |
3 | 1 | 1 | 11 | attr1, attr2, attr4, attr5, attr6, attr8, attr10, attr11, attr12, attr13, attr14 |
4 | 1 | 1 | 11 | attr1, attr2, attr5, attr6, attr8, attr9, attr10, attr11, attr12, attr13, attr14 |
5 | 1 | 1 | 11 | attr1, attr2, attr4, attr5, attr6, attr8, attr9, attr11, attr12, attr13, attr14 |
6 | 1 | 1 | 12 | attr1, attr2, attr3, attr4, attr5, attr7, attr8, attr9, attr10, attr11, attr13, attr14 |
7 | 1 | 1 | 12 | attr1, attr2, attr3, attr5, attr6, attr7, attr8, attr9, attr10, attr11, attr13, attr14 |
8 | 1 | 1 | 12 | attr1, attr2, attr3, attr4, attr5, attr7, attr8, attr9, attr10, attr11, attr12, attr13 |
9 | 1 | 1 | 12 | attr1, attr2, attr3, attr4, attr5, attr7, attr8, attr10, attr11, attr12, attr13, attr14 |
10 | 1 | 1 | 12 | attr1, attr2, attr3, attr4, attr5, attr6, attr7, attr8, attr9, attr11, attr12, attr13 |
11 | 1 | 1 | 12 | attr1, attr2, attr3, attr4, attr6, attr7, attr8, attr9, attr11, attr12, attr13, attr14 |
12 | 1 | 1 | 12 | attr1, attr2, attr3, attr4, attr6, attr7, attr8, attr10, attr11, attr12, attr13, attr14 |
13 | 1 | 1 | 12 | attr1, attr2, attr3, attr4, attr5, attr6, attr7, attr8, attr9, attr11, attr13, attr14 |
14 | 1 | 1 | 12 | attr1, attr2, attr4, attr6, attr7, attr8, attr9, attr10, attr11, attr12, attr13, attr14 |
15 | 1 | 1 | 12 | attr1, attr2, attr4, attr5, attr7, attr8, attr9, attr10, attr11, attr12, attr13, attr14 |
∩# | Pos.Reg. | SC | Attribute | Reductions |
---|---|---|---|---|
1 | 1 | 1 | 12 | attr1, attr2, attr3, attr4, attr5, attr7, attr8, attr10, attr11, attr12, attr13 |
2 | 1 | 1 | 13 | attr1, attr2, attr3, attr4, attr5, attr6, attr7, attr8, attr9, attr10, attr11, attr13, attr14 |
3 | 1 | 1 | 12 | attr1, attr2, attr3, attr4, attr5, attr7, attr8, attr9, attr10, attr12, attr13, attr14 |
4 | 1 | 1 | 11 | attr1, attr2, attr4, attr5, attr8, attr9, attr10, attr11, attr12, attr13, attr14 |
5 | 1 | 1 | 12 | attr1, attr3, attr4, attr5, attr7, attr8, attr9, attr10, attr11, attr12, attr13, attr14 |
6 | 1 | 1 | 12 | attr1, attr4, attr5, attr6, attr7, attr8, attr9, attr10, attr11, attr12, attr13, attr14 |
∩# | Pos.Reg. | SC | Attribute | Reductions |
---|---|---|---|---|
1 | 1 | 1 | 12 | attr1, attr2, attr3, attr4, attr5, attr6, attr7, attr8, attr10, attr11, attr12, attr13 |
2 | 1 | 1 | 12 | attr1, attr2, attr3, attr4, attr6, attr7, attr8, attr10, attr11, attr12, attr13, attr14 |
3 | 1 | 1 | 11 | attr1, attr2, attr4, attr5, attr8, attr9, attr10, attr11, attr12, attr13, attr14 |
4 | 1 | 1 | 10 | attr1, attr2, attr4, attr6, attr8, attr9, attr10, attr11, attr12, attr13 |
5 | 1 | 1 | 12 | attr1, attr2, attr4, attr5, attr6, attr8, attr9, attr10, attr11, attr12, attr13, attr14 |
6 | 1 | 1 | 11 | attr1, attr3, attr4, attr6, attr7, attr8, attr9, attr10, attr11, attr12, attr14 |
7 | 1 | 1 | 10 | attr1, attr3, attr4, attr5, attr7, attr8, attr9, attr10, attr11, attr12 |
8 | 1 | 1 | 10 | attr3, attr4, attr5, attr7, attr9, attr10, attr11, attr12, attr13, attr14 |
No. | Attribute | Frequency | Occurrence | Core Attribute | Medium Impact Attribute | Insignificant Attribute | Importance Rank |
---|---|---|---|---|---|---|---|
1 | Cleaning the steel mold | 80.6% | 15 | ˅ | 1 | ||
2 | Assembling modules | 80.6% | 15 | ˅ | 1 | ||
3 | Lofting | 40.6% | 8 | ˅ | 4 | ||
4 | Dipping the steel rod cage | 60.3% | 11 | ˅ | 3 | ||
5 | Placing the wooden panels | 60.9% | 12 | ˅ | 2 | ||
6 | Checking before pouring | 60.3% | 11 | ˅ | 3 | ||
7 | Concrete pouring | 60.9% | 12 | ˅ | 2 | ||
8 | Fixture removal | 80.6% | 15 | ˅ | 1 | ||
9 | Concrete maintenance operations | 60.3% | 11 | ˅ | 3 | ||
10 | Removing the mold | 60.3% | 11 | ˅ | 3 | ||
11 | Stripping | 80.6% | 15 | ˅ | 1 | ||
12 | Component repair | 60.9% | 12 | ˅ | 2 | ||
13 | Inspection of finished components | 80.6% | 15 | ˅ | 1 | ||
14 | Warehouse storage | 60.9% | 12 | ˅ | 2 |
No | Attribute | Frequency | Occurrence | Core Attribute | Medium Impact Attribute | Insignificant Attribute | Importance Rank |
---|---|---|---|---|---|---|---|
1 | Cleaning the steel mold | 80.3% | 6 | ˅ | 1 | ||
2 | Assembling modules | 50.6% | 4 | ˅ | 3 | ||
3 | Lofting | 50.6% | 4 | ˅ | 3 | ||
4 | Dipping the steel rod cage | 80.3% | 6 | ˅ | 1 | ||
5 | Placing the wooden panels | 80.3% | 6 | ˅ | 1 | ||
6 | Checking before pouring | 15.8% | 2 | ˅ | 4 | ||
7 | Concrete pouring | 60.9% | 5 | ˅ | 2 | ||
8 | Fixture removal | 80.3% | 6 | ˅ | 1 | ||
9 | Concrete maintenance operations | 80.3% | 6 | ˅ | 1 | ||
10 | Removing the mold | 80.3% | 6 | ˅ | 1 | ||
11 | Stripping | 60.9% | 5 | ˅ | 2 | ||
12 | Component repair | 60.9% | 5 | ˅ | 2 | ||
13 | Inspection of finished components | 80.3% | 6 | ˅ | 1 | ||
14 | Warehouse storage | 60.9% | 5 | ˅ | 2 |
No | Attribute | Frequency | Occurrence | Core Attribute | Medium Impact Attribute | Insignificant Attribute | Importance Rank |
---|---|---|---|---|---|---|---|
1 | Cleaning the Steel mold | 74.5% | 7 | ˅ | 2 | ||
2 | Assembling Modules | 70.3% | 5 | ˅ | 3 | ||
3 | Lofting | 32.6% | 3 | ˅ | 6 | ||
4 | Dipping the steel rod cage | 74.5% | 7 | ˅ | 2 | ||
5 | Placing the wooden panels | 60.9% | 5 | ˅ | 4 | ||
6 | Checking before pouring | 60.9% | 5 | ˅ | 4 | ||
7 | Concrete pouring | 52.3% | 4 | ˅ | 5 | ||
8 | Fixture removal | 74.5% | 7 | ˅ | 2 | ||
9 | Concrete maintenance operations | 60.9% | 5 | ˅ | 4 | ||
10 | Removing the mold | 80.5% | 8 | ˅ | 1 | ||
11 | Stripping | 80.5% | 8 | ˅ | 1 | ||
12 | Component repair | 80.5% | 8 | ˅ | 1 | ||
13 | Inspection of finished components | 60.9% | 5 | ˅ | 4 | ||
14 | Warehouse storage | 60.9% | 5 | ˅ | 4 |
(K = 10) Testing Subset No. | KNN | Rough-Set Enhanced KNN |
---|---|---|
1 | 85.59 | 91.01 |
2 | 85.56 | 91.85 |
3 | 85.77 | 91.51 |
4 | 85.22 | 91.94 |
5 | 85.78 | 93.77 |
6 | 85.41 | 91.82 |
7 | 85.86 | 91.88 |
8 | 80.71 | 95.82 |
9 | 85.59 | 91.87 |
10 | 77.23 | 92.17 |
Average | 84.27 | 92.36 |
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Chen, J.-H.; Chen, C.-L.; Wei, H.-H. Manpower Allocation of Work Activities for Producing Precast Components: Empirical Study in Taiwan. Sustainability 2023, 15, 7436. https://doi.org/10.3390/su15097436
Chen J-H, Chen C-L, Wei H-H. Manpower Allocation of Work Activities for Producing Precast Components: Empirical Study in Taiwan. Sustainability. 2023; 15(9):7436. https://doi.org/10.3390/su15097436
Chicago/Turabian StyleChen, Jieh-Haur, Chih-Lin Chen, and Hsi-Hsien Wei. 2023. "Manpower Allocation of Work Activities for Producing Precast Components: Empirical Study in Taiwan" Sustainability 15, no. 9: 7436. https://doi.org/10.3390/su15097436
APA StyleChen, J.-H., Chen, C.-L., & Wei, H.-H. (2023). Manpower Allocation of Work Activities for Producing Precast Components: Empirical Study in Taiwan. Sustainability, 15(9), 7436. https://doi.org/10.3390/su15097436