{
  "options": [
    {
      "name": "Metro + Walk",
      "metadata": {
        "mode_family": "public_transit"
      },
      "values": [
        {
          "criterion_name": "travel_time_min",
          "value": 42
        },
        {
          "criterion_name": "cost",
          "value": 3.2
        },
        {
          "criterion_name": "walking_min",
          "value": 14
        },
        {
          "criterion_name": "transfers",
          "value": 1
        }
      ]
    },
    {
      "name": "Direct Bus",
      "metadata": {
        "mode_family": "public_transit"
      },
      "values": [
        {
          "criterion_name": "travel_time_min",
          "value": 55
        },
        {
          "criterion_name": "cost",
          "value": 1.6
        },
        {
          "criterion_name": "walking_min",
          "value": 6
        },
        {
          "criterion_name": "transfers",
          "value": 0
        }
      ]
    },
    {
      "name": "Ride Hail",
      "metadata": {
        "mode_family": "on_demand"
      },
      "values": [
        {
          "criterion_name": "travel_time_min",
          "value": 28,
          "confidence": 0.72
        },
        {
          "criterion_name": "cost",
          "value": 18.5
        },
        {
          "criterion_name": "walking_min",
          "value": 2
        },
        {
          "criterion_name": "transfers",
          "value": 0
        }
      ]
    }
  ],
  "criteria": [
    {
      "name": "travel_time_min",
      "weight": 0.4,
      "direction": "cost",
      "description": "Estimated door-to-door travel time in minutes."
    },
    {
      "name": "cost",
      "weight": 0.2,
      "direction": "cost",
      "description": "Total monetary trip cost."
    },
    {
      "name": "walking_min",
      "weight": 0.25,
      "direction": "cost",
      "description": "Total walking time required by the route."
    },
    {
      "name": "transfers",
      "weight": 0.15,
      "direction": "cost",
      "description": "Number of route changes during the trip."
    }
  ],
  "constraints": [
    {
      "constraint_type": "max_value",
      "criterion_name": "walking_min",
      "threshold": 15,
      "hard": true
    }
  ],
  "policy_name": "balanced",
  "context": "Choose a route to the airport while keeping walking manageable."
}