{ "instance_id": "lastmile_small_s123", "strategies": { "routefinder": { "final_metrics": { "total_distance": 2758.16, "total_lateness_min": 25915.86, "total_objective": 210085.04, "reoptimization_count": 145, "avg_route_change_penalty": 0.244 }, "stability_metrics": { "schedule_stability_score": 0.8441, "avg_route_change_penalty": 0.244, "reoptimization_count": 145, "reopt_rate_per_hour": 12.083, "driver_disruption_index": 3.778 }, "n_steps": 145 }, "rolling_horizon": { "final_metrics": { "total_distance": 3008.44, "total_lateness_min": 26261.67, "total_objective": 213110.21, "reoptimization_count": 145, "avg_route_change_penalty": 0.516 }, "stability_metrics": { "schedule_stability_score": 0.8386, "avg_route_change_penalty": 0.516, "reoptimization_count": 145, "reopt_rate_per_hour": 12.083, "driver_disruption_index": 7.994 }, "n_steps": 145 }, "alns": { "final_metrics": { "total_distance": 3001.73, "total_lateness_min": 25962.49, "total_objective": 210719.28, "reoptimization_count": 145, "avg_route_change_penalty": 0.447 }, "stability_metrics": { "schedule_stability_score": 0.84, "avg_route_change_penalty": 0.447, "reoptimization_count": 145, "reopt_rate_per_hour": 12.083, "driver_disruption_index": 6.934 }, "n_steps": 145 }, "monte_carlo": { "final_metrics": { "total_distance": 2727.98, "total_lateness_min": 25734.84, "total_objective": 208606.7, "reoptimization_count": 145, "avg_route_change_penalty": 0.133 }, "stability_metrics": { "schedule_stability_score": 0.8463, "avg_route_change_penalty": 0.133, "reoptimization_count": 145, "reopt_rate_per_hour": 12.083, "driver_disruption_index": 2.067 }, "n_steps": 145 }, "scenario_tree": { "final_metrics": { "total_distance": 2711.72, "total_lateness_min": 25823.53, "total_objective": 209299.96, "reoptimization_count": 145, "avg_route_change_penalty": 0.143 }, "stability_metrics": { "schedule_stability_score": 0.8461, "avg_route_change_penalty": 0.143, "reoptimization_count": 145, "reopt_rate_per_hour": 12.083, "driver_disruption_index": 2.223 }, "n_steps": 145 }, "ortools": { "final_metrics": { "total_distance": 2781.32, "total_lateness_min": 22064.69, "total_objective": 179298.85, "reoptimization_count": 145, "avg_route_change_penalty": 0.189 }, "stability_metrics": { "schedule_stability_score": 0.8452, "avg_route_change_penalty": 0.189, "reoptimization_count": 145, "reopt_rate_per_hour": 12.083, "driver_disruption_index": 2.924 }, "n_steps": 145 }, "reinforcement_learning": { "final_metrics": { "total_distance": 3050.16, "total_lateness_min": 25919.29, "total_objective": 210404.48, "reoptimization_count": 145, "avg_route_change_penalty": 0.028 }, "stability_metrics": { "schedule_stability_score": 0.8484, "avg_route_change_penalty": 0.028, "reoptimization_count": 145, "reopt_rate_per_hour": 12.083, "driver_disruption_index": 0.434 }, "n_steps": 145 } }, "ranking": [ "ortools", "monte_carlo", "scenario_tree", "routefinder", "reinforcement_learning", "alns", "rolling_horizon" ], "winner": "ortools" }