{ "instance_id": "lastmile_large_s42", "strategies": { "routefinder": { "final_metrics": { "total_distance": 11786.98, "total_lateness_min": 99248.06, "total_objective": 805771.46, "reoptimization_count": 145, "avg_route_change_penalty": 0.986 }, "stability_metrics": { "schedule_stability_score": 0.8292, "avg_route_change_penalty": 0.986, "reoptimization_count": 145, "reopt_rate_per_hour": 12.083, "driver_disruption_index": 15.277 }, "n_steps": 145 }, "rolling_horizon": { "final_metrics": { "total_distance": 12194.71, "total_lateness_min": 100377.13, "total_objective": 815224.27, "reoptimization_count": 145, "avg_route_change_penalty": 1.044 }, "stability_metrics": { "schedule_stability_score": 0.8281, "avg_route_change_penalty": 1.044, "reoptimization_count": 145, "reopt_rate_per_hour": 12.083, "driver_disruption_index": 16.188 }, "n_steps": 145 }, "alns": { "final_metrics": { "total_distance": 11656.06, "total_lateness_min": 99533.42, "total_objective": 807940.87, "reoptimization_count": 145, "avg_route_change_penalty": 0.31 }, "stability_metrics": { "schedule_stability_score": 0.8428, "avg_route_change_penalty": 0.31, "reoptimization_count": 145, "reopt_rate_per_hour": 12.083, "driver_disruption_index": 4.803 }, "n_steps": 145 }, "monte_carlo": { "final_metrics": { "total_distance": 11213.52, "total_lateness_min": 98631.96, "total_objective": 800269.2, "reoptimization_count": 145, "avg_route_change_penalty": 0.651 }, "stability_metrics": { "schedule_stability_score": 0.8359, "avg_route_change_penalty": 0.651, "reoptimization_count": 145, "reopt_rate_per_hour": 12.083, "driver_disruption_index": 10.092 }, "n_steps": 145 }, "scenario_tree": { "final_metrics": { "total_distance": 11033.55, "total_lateness_min": 98508.37, "total_objective": 799100.51, "reoptimization_count": 145, "avg_route_change_penalty": 0.578 }, "stability_metrics": { "schedule_stability_score": 0.8374, "avg_route_change_penalty": 0.578, "reoptimization_count": 145, "reopt_rate_per_hour": 12.083, "driver_disruption_index": 8.963 }, "n_steps": 145 }, "ortools": { "final_metrics": { "total_distance": 11381.99, "total_lateness_min": 84359.18, "total_objective": 686255.47, "reoptimization_count": 145, "avg_route_change_penalty": 1.048 }, "stability_metrics": { "schedule_stability_score": 0.828, "avg_route_change_penalty": 1.048, "reoptimization_count": 145, "reopt_rate_per_hour": 12.083, "driver_disruption_index": 16.242 }, "n_steps": 145 }, "reinforcement_learning": { "final_metrics": { "total_distance": 11894.35, "total_lateness_min": 99395.78, "total_objective": 807060.59, "reoptimization_count": 145, "avg_route_change_penalty": 0.526 }, "stability_metrics": { "schedule_stability_score": 0.8384, "avg_route_change_penalty": 0.526, "reoptimization_count": 145, "reopt_rate_per_hour": 12.083, "driver_disruption_index": 8.155 }, "n_steps": 145 } }, "ranking": [ "ortools", "scenario_tree", "monte_carlo", "routefinder", "reinforcement_learning", "alns", "rolling_horizon" ], "winner": "ortools" }