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Ground transport

Description
Problem name and type, featuresDifficultyRelated examples
E‑1 Car rental: Transport problem *** transport_graph.mos
data preprocessing, set operations, sqrt and ^2, if-then-elif
E‑2 Choosing the mode of transport: Minimum cost flow ** mincostflow_graph.mos
formulation with extra nodes for modes of transport; encoding of arcs, finalize, union of sets, nodes labeled with strings
E‑3 Depot location: Facility location problem *** facilityloc_graph.mos
modeling flows as fractions, definition of model cuts
E‑4 Heating oil delivery: Vehicle routing problem (VRP) **** vrp_graph.mos
elimination of inadmissible subtours, cuts; selection with `|', definition of model cuts
E‑5 Combining different modes of transport ***
modeling implications, weak and strong formulation of bounding constraints; triple indices
E‑6 Fleet planning for vans ***
maxlist, minlist, max, min


Further explanation of this example: 'Applications of optimization with Xpress-MP', Chapter 10: Ground transport

mosel_app_5.zip[download all files]

Source Files
By clicking on a file name, a preview is opened at the bottom of this page.
e1carrent.mos[download]
e2minflow.mos[download]
e3depot.mos[download]
e4deliver.mos[download]
e5combine.mos[download]
e6vanrent.mos[download]

Data Files
e1carrent.dat[download]
e2minflow.dat[download]
e3depot.dat[download]
e4deliver.dat[download]
e5combine.dat[download]
e6vanrent.dat[download]




e4deliver.dat

! Data file for `e4deliver.mos'

DIST: [ 0 148 55  32  70 140 73
      148   0 93 180  99  12 72
       55  93  0  85  20  83 28
       32 180 85   0 100 174 99
       70  99 20 100   0  85 49
      140  12 83 174  85   0 73
       73  72 28  99  49  73  0]

DEM: [(2) 14000 3000 6000 16000 15000 5000]

CAP: 39000
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