Integrated CLSC Data Instances

Easwaran, G., and Üster. H., “A Closed-Loop Supply Chain Network Design Problem with Integrated Forward and Reverse Channel Decisions,” IIE Transactions, Vol. 42/11, pp. 779-792, 2010.

Note: The link to the CLSC Network Design Problem data instances is given below.

           Please right click on the link and click "Save Target As" to save it on your machine.

· CLSC Data Instances - Model-3.zip

Format:

1. The data instances are named M3_1.txt to M3_120.txt.

2. There are 12 different classes. There are 10 instances under each class.

3. The Table below gives the number of products, retailers, and collection centers in each class.

Class	Products	Retailers	Collection Centers
C1	5	60	25
C2	5	60	35
C3	5	90	25
C4	5	90	35
C5	5	120	25
C6	5	120	35
C7	10	60	25
C8	10	60	35
C9	10	90	25
C10	10	90	35
C11	10	120	25
C12	10	120	35

4. The Legend for the input file format is given below:

Symbol	Details
P	Products
R	Retailers
H	Hybrid Distribution/Collection Centers
M(p)	Hybrid Manufacturing/Remanufacturing Plants
D'rp	Fresh demand for product p at retailer r
Drp	Return demand for product p at retailer r
rhLTC	Transportation cost (per unit per mi) between retailer r and hybrid center h
hm(p)LTC_[h][p][m]	Transportation cost (per unit per mi) between hybrid center h and hybrid plant m, associated with product p
Delta[r][p]	Retailer return fraction for product p at location r
Fh	Fixed cost of opening hybrid center h
Fm(p) - mpFC[p][m]	Fixed cost of opening plant m for product p
pdPC - [p][h]	Distribution processing cost for product p at location h
pkPC - [p][h]	Collection processing cost for product p at location h
POemPC[p][m]	Manufacturing cost for product p at location m
PRemanPC[p][m]	Remanufacturing cost for product p at location m
MCap[p][m]	(not applicable)
Alpha[p][m(p)]	Remanufacturing coefficient for plant m for product p
Distribution_Capacity_Coefficients	Distribution capacity coefficient for product p
Collection_Capacity_Coefficients	Collection capacity coefficient for product p
hCap[h]	Capacity for hybrid center h

5. All the text files follow the following sample format. (Products=2, Retailers=3, Hybrid Centers=3).

P
2
R
3
H
3
M(p)
[3, 3]
D'rp
[[476, 480], [478, 458], [480, 483]]
Drp
[[299, 250], [272, 250], [255, 268]]
rhLTC
[[6.64447, 7.7896, 2.9211], [3.63423, 4.78621, 3.14738], [6.08905, 7.34389, 1.70055]]
hm(p)LTC - [h][p][m]
[[[4.39954, 10.7587, 3.5525], [50.0591, 86.2556, 5.13426]], [[3.79271, 17.5223, 11.1379], [70.2111, 49.8024, 72.6498]], [[7.6992, 14.6272, 10.9736], [39.6622, 15.7879, 83.5602]]]
Delta[r][p]
[[0.760799, 0.77289], [0.702997, 0.729463], [0.718281, 0.73318]] Fh
[1.44773e+007, 1.54936e+007, 1.51822e+007]
Fm(p) - mpFC[p][m]
[[1.02101e+006, 1.20925e+006, 1.15693e+006], [1.51668e+006, 1.56021e+006, 1.43467e+006]] pdPC - [p][h]
[[36.1182, 34.0571, 30.2031], [52.3546, 51.7581, 49.1857]] pkPC - [p][h]
[[629.786, 643.444, 669.231], [1001.34, 959.652, 941.519]]
POemPC[p][m]
[[673.267, 671.105, 773.797], [1081.28, 1004.03, 1088.2]]
PRemanPC[p][m]
[[131.865, 127.704, 135.468], [202.914, 197.062, 192.55]]
MCap[p][m]
[[1.02101e+006, 1.20925e+006, 1.15693e+006], [1.51668e+006, 1.56021e+006, 1.43467e+006]]
Alpha[p][m(p)]
[[0.948111, 0.934389, 0.831339], [0.95461, 0.92789, 0.892436]]
Distribution_Capacity_Coefficients
[1, 5]
Collection_Capacity_Coefficients
[1, 2] hCap[h]
[9787.92, 9246.38, 9037.32]

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