Flight: TU Chalmers 🇸🇪

💡 High-Level Description:

The TU-Chalmers methodology originates from research conducted by Chalmers University of Technology, one of Sweden’s leading institutions in environmental and energy sciences. This methodology is grounded in academic research that focuses on improving the precision of greenhouse gas (GHG) calculations for air travel. It integrates detailed parameters such as booking class, flight type (scheduled or charter), and the use of biofuels to offer a refined understanding of aviation emissions.

TU-Chalmers stands out for its consideration of passenger class-specific emissions (reflecting differences in space usage and associated fuel allocation) and for enabling assessments of flights utilizing biofuels. This approach is particularly beneficial for academic institutions, sustainability auditors, and airlines aiming to implement climate-conscious travel policies and carbon reporting practices.

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Sample API Request

{
  "expand": [
    "items"
  ],
  "items": [
    {
      "type": "flight",
      "methodology": "TU-CHALMERS",
      "external_reference": "test_1",
      "number_of_travelers": 1,
      "origin": "FRA",
      "destination": "JFK",
      "booking_class": "premium_economy",
      "plane_type": "scheduled",
      "biofuel": true
    }
  ]
}

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API Request Items

• "type": "flight" (required)

• "methodology": "TU-CHALMERS" (required)

• "external_reference": A unique identifier to help link the resulting emissions to the specific request. This is useful when multiple items are submitted. Max length is 128 characters.

• "number_of_travelers": Minimum value is 1. Default value is 1.

• "origin": Accepts IATA/ICAO airport codes, UN/LOCODEs, or latitude/longitude pairs. (e.g. "FRA" or "+40.712,-74.006")

• "destination": Accepts IATA/ICAO airport codes, UN/LOCODEs, or latitude/longitude pairs.

• "distance_in_km": If provided, it overrides origin and destination. If omitted, distance is resolved automatically using origin and destination.

• "booking_class": Indicates the travel class. Supported values include: economy, premium_economy, business, and first. This affects emissions based on the space and resource allocation per passenger.

• "plane_type": Specifies whether the flight is a "scheduled" service or a "charter" flight. Default value is "scheduled".

• "biofuel": A boolean (true or false) indicating whether biofuel was used for the flight. Default is false.

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Sample API Response

{
    "carbon_quantity": 632000,
    "carbon_unit": "gram",
    "items": [
        {
            "carbon_quantity": 632000,
            "carbon_unit": "gram",
            "external_reference": "test_1",
            "type": "flight",
            "methodology": "TU-CHALMERS",
            "distance": 6320.0,
            "distance_unit": "kilometer"
        }
    ]
}

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Bibliography

• Methodology Report for Travel and Climate (Version 4.1). Chalmers University of Technology. Retrieved from https://travelandclimate.org/method/Methodology-Report-for-Travel-and-Climate-Version-4-1.pdf