You can used genetic genetic algorithm or others method optimization with one good cost cost function ... you need a cost function suitable with your problem
i have already done a heuristic approach, using A heuristic approach for the TPP, Jorge Riera-Ledesma and Juan Salazar-González, Ejor, 2004, and i love to know and learn about ampl.
Hi, Muhammad, I am doing a mini-document for location theory in spanish, and implemented some easy model in ampl, but for this problem i do not have had luck, either time. My email is [email protected], if you want you email me and talk about, a partner will be wonderfull.