Robust Optimization for Integrated Construction Scheduling and Multiscale Resource Allocation

Table 3

Comparison of cost between multiscale and single-scale resource allocation strategy.

Solution number	1	2	3	4	5	6	7	8	Avg.
Strategy 1: allocate permanent and temporary workers	44.64	39.00	44.06	38.62	38.73	39.79	41.01	44.33	41.27
Strategy 2: allocate permanent workers only	47.34	40.33	45.86	40.40	40.57	40.95	42.45	46.01	42.99
Strategy 3: allocate temporary workers only	62.97	62.25	63.46	62.43	62.11	62.57	61.91	63.43	62.64
Gap between strategy 1 and strategy 2	2.71	1.33	1.81	1.78	1.85	1.16	1.45	1.67	1.72
Gap between strategy 1 and strategy 3	18.34	23.24	19.41	23.80	23.38	22.78	20.90	19.10	21.37