A Novel Resource-Leveling Approach for Construction Project Based on Differential Evolution

Table 2

Project information.

Activity	Duration	Predecessor	Resource demand (𝑅)
1	1		0
2	10	1	5
3	5	1	2
4	15	1	3
5	3	1	2
6	10	1	2
7	15	2	6
8	7	3	10
9	3	5	6
10	3	5	2
11	2	5	2
12	3	4, 10, 11	6
13	2	10	1
14	2	8, 12	5
15	3	12, 13	2
16	1	14	6
17	1	15	7
18	1	16	7
19	4	7, 9, 17, 18	13
20	2	15, 18	9
21	2	19	4
22	1	20	6
23	3	21	8
24	1	22	3
25	4	23, 24	8
26	2	25	7
27	25	6	5
28	3	23	6
29	3	23	2
30	3	26	9
31	3	30	10
32	3	30	3
33	2	27, 29, 30	4
34	1	32	0
35	4	33	1
36	3	34, 35	12
37	3	36	12
38	3	28, 31, 37	3
39	5	28, 31, 37	8
40	1	36	2
41	3	38, 39, 40	10
42	1	41	3
43	6	42	3
44	1	43	0