Determination of construction process duration based on labor productivity estimation: A case study
Article Category: Research Paper
Publié en ligne: 20 nov. 2021
Pages: 2521 - 2538
Reçu: 21 mars 2021
Accepté: 30 sept. 2021
© 2021 Darja Kubečková et al., published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Fig. 1
Type of above-ground floor of building J1–J2.Fig. 2
Comparison of process duration.Plastering works – Distribution of number of plasterers in work queue no.1
Floor |
No. of plasterers |
Overall performance plan m2/sm |
Overall performance plan m2/month |
1 |
8 |
87.6 |
1,752 |
2 |
8 |
87.6 |
1,752 |
3 |
– |
– |
– |
4 |
– |
– |
– |
5 |
– |
– |
– |
6 |
– |
– |
– |
7 |
– |
– |
– |
ς |
16 |
175.2 |
3,504 |
Plastering works SO J 34
Worker no. |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
11 |
12 |
13 |
14 |
15 |
16 |
Performance/shift |
12 |
11 |
10 |
12 |
11 |
13 |
12 |
11 |
10 |
12 |
11 |
10 |
13 |
10 |
12 |
11 |
Worker no. |
17 |
18 |
19 |
20 |
21 |
22 |
23 |
24 |
25 |
26 |
27 |
28 |
29 |
30 |
31 |
32 |
Performance/shift |
12 |
11 |
11 |
12 |
11 |
13 |
12 |
11 |
12 |
12 |
11 |
12 |
13 |
12 |
10 |
12 |
Calculation of observed value XOBS – originally wrongly numbered 2
Ordered |
Series (i) |
(í−1)/n |
í/n |
F(x) |
D pro |
D pro |
D |
|
Values x |
|
|
|
|
|
|
i/n |
(í−1)/n |
|
10 |
|
1 |
|
0 |
0.063 |
0.036 |
0.027 |
0.036 |
0.036 |
10 |
|
2 |
|
0.063 |
0.125 |
0.036 |
0.089 |
−0.027 |
0.089 |
11 |
9 |
0.5 |
0.563 |
0.274 |
0.289 |
|
|
−0.226 |
0.289 |
12 |
10 |
0.563 |
0.625 |
0.726 |
−0.101 |
|
|
0.163 |
0.163 |
12 |
11 |
0.625 |
0.688 |
0.726 |
−0.038 |
|
|
0.101 |
0.101 |
12 |
12 |
0.688 |
0.75 |
0.726 |
0.024 |
|
|
0.038 |
0.038 |
12 |
13 |
0.75 |
0.813 |
0.726 |
0.087 |
|
|
−0.024 |
0.087 |
12 |
14 |
0.813 |
0.875 |
0.726 |
0.149 |
|
|
−0.087 |
0.149 |
13 |
15 |
0.875 |
0.938 |
0.964 |
−0.026 |
0.089 |
0.089 |
|
|
13 |
16 |
0.938 |
1 |
0.964 |
0.036 |
0.026 |
0.036 |
|
|