Table 3. Attribute labels and ranges.

Attribute	Label	1	2	3	4	5	6	7	8	9
Number of Nodes	range	101–199	200–299	300–399	400–499	500–599	600–799	800–1,001
	n	21	22	15	10	9	12	11
Sum of Demands	range	119–799	800–1,499	1,500–2,999	3,000–4,999	5,000–9,999	10,000–14,999	15,000–19,999	20,000–34,999	35,000–67,057
	n	14	10	12	13	12	8	9	12	10
Time Constraint	range	780–999	1,000–1,199	1,200–1,499	1,500–1,699	1,700–1,999	2,000–2,850
	n	15	16	19	23	17	10
Capacity Constraint	range	19–March	20–49	50–99	100–139	140–199	200–399	400–599	600–899	900–1,816
	n	15	11	9	12	10	13	9	10	11
Depot Positioning	label	Center	Origin (E)	Random
	n	32	34	34
Node Positioning	label	Clustered	Clustered/Random	Random
	n	32	34	34
Demand Distribution	label	1–10	5–10	1–100	50–100	Quadrant	Many Small, Few Large	Uniform
	n	14	14	14	14	14	14	16