{ "instance_id": "lastmile_small_s456", "strategies": { "routefinder": { "final_metrics": { "total_distance": 2864.05, "total_lateness_min": 24165.45, "total_objective": 196187.65, "reoptimization_count": 145, "avg_route_change_penalty": 0.07 }, "stability_metrics": { "schedule_stability_score": 0.8476, "avg_route_change_penalty": 0.07, "reoptimization_count": 145, "reopt_rate_per_hour": 12.083, "driver_disruption_index": 1.085 }, "n_steps": 145 }, "rolling_horizon": { "final_metrics": { "total_distance": 2953.73, "total_lateness_min": 24154.82, "total_objective": 196200.85, "reoptimization_count": 145, "avg_route_change_penalty": 0.423 }, "stability_metrics": { "schedule_stability_score": 0.8405, "avg_route_change_penalty": 0.423, "reoptimization_count": 145, "reopt_rate_per_hour": 12.083, "driver_disruption_index": 6.564 }, "n_steps": 145 }, "alns": { "final_metrics": { "total_distance": 2866.98, "total_lateness_min": 24560.36, "total_objective": 199349.86, "reoptimization_count": 145, "avg_route_change_penalty": 0.608 }, "stability_metrics": { "schedule_stability_score": 0.8368, "avg_route_change_penalty": 0.608, "reoptimization_count": 145, "reopt_rate_per_hour": 12.083, "driver_disruption_index": 9.421 }, "n_steps": 145 }, "monte_carlo": { "final_metrics": { "total_distance": 2822.56, "total_lateness_min": 23936.77, "total_objective": 194316.72, "reoptimization_count": 145, "avg_route_change_penalty": 0.102 }, "stability_metrics": { "schedule_stability_score": 0.8469, "avg_route_change_penalty": 0.102, "reoptimization_count": 145, "reopt_rate_per_hour": 12.083, "driver_disruption_index": 1.588 }, "n_steps": 145 }, "scenario_tree": { "final_metrics": { "total_distance": 2722.11, "total_lateness_min": 23898.54, "total_objective": 193910.43, "reoptimization_count": 145, "avg_route_change_penalty": 0.086 }, "stability_metrics": { "schedule_stability_score": 0.8472, "avg_route_change_penalty": 0.086, "reoptimization_count": 145, "reopt_rate_per_hour": 12.083, "driver_disruption_index": 1.333 }, "n_steps": 145 }, "ortools": { "final_metrics": { "total_distance": 2746.84, "total_lateness_min": 20630.6, "total_objective": 167791.62, "reoptimization_count": 145, "avg_route_change_penalty": 0.195 }, "stability_metrics": { "schedule_stability_score": 0.8451, "avg_route_change_penalty": 0.195, "reoptimization_count": 145, "reopt_rate_per_hour": 12.083, "driver_disruption_index": 3.02 }, "n_steps": 145 }, "reinforcement_learning": { "final_metrics": { "total_distance": 2913.46, "total_lateness_min": 24270.34, "total_objective": 197076.18, "reoptimization_count": 145, "avg_route_change_penalty": 0.031 }, "stability_metrics": { "schedule_stability_score": 0.8483, "avg_route_change_penalty": 0.031, "reoptimization_count": 145, "reopt_rate_per_hour": 12.083, "driver_disruption_index": 0.48 }, "n_steps": 145 } }, "ranking": [ "ortools", "scenario_tree", "monte_carlo", "routefinder", "rolling_horizon", "reinforcement_learning", "alns" ], "winner": "ortools" }