## 5 Results
### Simulation of an Intact or Undamaged Platform  
A total of 68 simulations of the abandonment process were executed for both simulators on the study platform scenario without any failure or incident. Simulations followed the evacuation protocol established by the Spanish navy doctrine on the network of preestablished routes. The range of programmed simulations included the following two starting situations. 1. The call to general quarters (GQ), wherein crew members occupy their corresponding combat positions, and the embarked contingent occupies the locations designated for this particular event. 2. _Night transit at three patrols and rough seas_ (three teams watch, 3 TW). This starting situation has been identified as the worst possible case study due to the complexity of the scenario [14]. This case places a third of the crew on duty, and the remaining crew and the onboard contingent are located in premises, cabins, or decks set up for rest. Figure 4 shows the resulting evacuation times obtained from the simulations carried out by both simulators (MaritimeEXODUS and SIMONE) for the specific starting situations 3 TW and GQ. Figure 3: Unbalanced agent congestion at exits to exteriors, evacuation process (source MaritimeEXODUS). Based on the evacuation times achieved for the GQ starting situation, the following observations are pertinent. As it is a regulated protocol rehearsed by the embarked population, the value of the median evacuation times obtained from the nondeterministic simulators MaritimeEXODUS and SIMONE are very similar (210 s, 225 s, respectively) despite the significant dispersion they show. The GQ assumption alludes to an ideal situation, wherein the members of the embarked population are in predefined positions and evacuate the platform through a network of unscathed routes. Thus, the evacuation process is agile (see Figure 5), and the times recorded are shorter. However, this situation is extremely unlikely to occur in reality. Regarding the GQ assumption, it should be noted that MaritimeEXODUS was configured to minimize crew evacuation times by predefining optimal routes through LP. The objective was to compare its performance in the best possible conditions against SIMONE. That is why better results are obtained only for this ideal case. Even so, SIMONE can achieve minimum evacuation times lower than those of MaritimeEXODUS. In summary, MaritimeExodus does not provide better results in any case except one if the optimal route preconfiguration is done through LP. This is very impractical because the situation in which this case occurs has practically zero probability of occurrence. Regarding the evacuation times obtained for the 3 TW starting situation, the following remarks can be made. Because most of the members of the embarked population start from very specific decks, a significant delay at the beginning of the evacuation process should be taken into account as a consequence of the reaction times and evacuation preparation this specific situation entails. This time is not included in the results of the simulations and ranges between 3 and 4 min. It is worth noting that the concentration of agents on the starting decks before their evacuation inevitably leads to congestion at the accesses. Thus, these common locations on specific decks have higher than average occupancy rates or agent concentration. This calls for equalizing the estimated costs at these initial congestion points (accesses) by distributing agents among the accesses of the starting ship decks. Optimal management seeks progressive agent evacuation throughout the entire  
Figure 4: Box plots, abandonment times (MaritimeEXODUS vs. SIMONE) for the starting situations GQ and 3 TW in an undamaged platform. process (see Figure 6), minimizing the time spent by each agent and, thus, the time spent by the last agent leaving the platform. Under this assumption, a significant difference between the nondeterministic simulators MaritimeEXODUS and SIMONE is identified (Figure 4).