DOTSIM: uma metodologia baseada em otimização e simulação de eventos discretos para determinação da sequência ótima de duplicação em sistemas de transporte de cargas

Abstract

The definition of the best sequence on route duplication of freight systems consists of a complex NP-hard problem. There exists a huge variety of meta-heuristics (MH) capable of generating satisfactory solutions. However, it is fastidious to know which MH will produce the best solution for a Duplication Sequence Problem (DSP). This paper proposes a process development methodology which guides to evaluate the best duplication sequence comparing the MH’s performance with existing approaches such as linear analytical method (LAM), and thus to ensure that the system has its capacity maximized in the possible shortest time interval. If this sequence is prioritized incorrectly, it tends to generate wastes such as time and currency in new routes which will not add system capacity in short term. The potential of this methodology is demonstrated by a case study in railways.