Research Article
Selection of Sustainable Building Material Using Multicriteria Decision-Making Model: A Case of Masonry Work in Lideta Subcity, Addis Ababa
Table 6
Comparison of alternatives on the bases of life cycle cost.
| | A1 | A2 | A3 | A4 | | | | | A1 | 1 | 1/2 | 1/3 | 3/4 | | | | | A2 | 2 | 1 | 3/8 | 1 1/5 | | | | | A3 | 3 1/4 | 2 3/4 | 1 | 4 1/4 | | | | | A4 | 1 1/3 | 5/6 | 1/4 | 1 | | | | | Sum | 7 3/5 | 5 | 2 | 7 1/5 | | | | |
| | A1 | A2 | A3 | A4 | W | Ws | Eigen value (λ) = Ws.1/{W} | Rank | A1 | 0.131 | 0.099 | 0.161 | 0.102 | 12.33 (%) | 0.497 | 4.029 | 4 | A2 | 0.262 | 0.197 | 0.192 | 0.166 | 20.44 (%) | 0.822 | 4.023 | 2 | A3 | 0.428 | 0.539 | 0.524 | 0.592 | 52.09 (%) | 2.126 | 4.082 | 1 | A4 | 0.179 | 0.165 | 0.123 | 0.139 | 15.14 (%) | 0.612 | 4.044 | 3 | Sum | 1.000 | 1.000 | 1.000 | 1.000 | 1.000 | | | |
| λmax = Average λ value | 4.045 | | | | | | | N | 4.000 | | | | | | | CI | 0.015 | | | | | | | RCI | 0.900 | | | | | | | CR | 0.017 | | | | | | |
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