| This dissertation focuses on the development of mathematical models that may aid in the strategic planning of distributional operations of petroleum distillates in countries such as Mexico, where these operations are very complex involving multiple time periods, multiple commodities, several means of transportation, and uncertain demands.;The extension of policy planning to other regions of the country, a secondary problem, is begun with a framework of modeling which comprehends inter-regional transfers. Future research will develop the corresponding intra-regional policy tools.;A new mathematical instrument for policy analysis of the west coast tanker distributional operations of Pemex regarding gasoline and diesel fuels is developed in terms of goal-interval programming formulations. Taking advantage of the special structure of these multiperiod-multicommodity formulations that would otherwise be mixed-integer programming problems, new special linear programming structures are devised which achieve integrality at extreme point solutions. This permits assessment of incremental policy changes in terms of the usual dual variables, a significant advantage. |
