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Air transport

Description
Problem name and type, featuresDifficultyRelated examples
F‑1 Flight connections at a hub: Assignment problem * assignment_graph.mos, i1assign.mos, c6assign.mos
F‑2 Composing flight crews: Bipartite matching **** matching_graph.mos
2 problems, data preprocessing, incremental definition of data array, encoding of arcs, logical or (cumulative version) and and, procedure for printing solution, forall-do, max, finalize
F‑3 Scheduling flight landings: Scheduling problem with time windows ***
generalization of model to arbitrary time windows; calculation of specific BigM, forall-do
F‑4 Airline hub location: Hub location problem ***
quadruple indices; improved (re)formulation (first model not usable with student version), union of index (range) sets
F‑5 Planning a flight tour: Symmetric traveling salesman problem ***** tsp_graph.mos
loop over problem solving, TSP subtour elimination algorithm; procedure for generating additional constraints, recursive subroutine calls, working with sets, forall-do, repeat-until, getsize, not


Further explanation of this example: 'Applications of optimization with Xpress-MP', Chapter 11: Air transport

mosel_app_6.zip[download all files]

Source Files
By clicking on a file name, a preview is opened at the bottom of this page.
f1connect.mos[download]
f2crew.mos[download]
f3landing.mos[download]
f4hub.mos[download]
f4hub2.mos[download]
f4hub3.mos[download]
f5tour.mos[download]
f5tour2.mos[download]

Data Files
f1connect.dat[download]
f2crew.dat[download]
f3landing.dat[download]
f4hub.dat[download]
f5tour.dat[download]
f5tour23.dat[download]
f5tour7.dat[download]




f5tour.dat

! Data file for `f5tour.mos'

DIST: [(1 2) 786 549 657 331 559 250
           (2 3) 668 979 593 224 905
               (3 4) 316 607 472 467
                   (4 5) 890 769 400
                       (5 6) 386 559
                           (6 7) 681]
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