Robust Optimization Model and Algorithm for Railway Freight Center Location Problem in Uncertain Environment

Table 1

Distances between shippers and candidate centers (km).

Center	Shipper
	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23
1	40	3	5	4	3	6	4	9	15	27	20	27	21	25	25	29	30	35	38	42	20	13	24
2	120	11	13	12	11	14	4	1	7	19	12	19	13	17	17	21	22	27	30	34	12	5	16
3	250	23	26	25	23	27	17	12	6	6	3	7	16	20	20	24	10	15	15	19	18	14	3
4	310	20	32	31	29	33	22	17	15	14	8	10	19	23	23	27	5	10	10	14	18	16	11
5	290	28	30	29	28	31	22	15	13	12	6	8	17	21	21	25	7	12	12	16	16	14	9
6	120	11	13	12	8	14	15	10	16	28	21	13	12	16	16	20	25	30	30	34	8	7	25
7	160	15	25	24	21	23	22	17	25	35	23	4	6	10	11	14	28	33	34	39	5	9	32