Highlights Insights into CO2 emission calculation away from gate-to-gate and towards door-to-door. Most CO2 emission-intense global air routes, both long-haul and short-haul are shown. On a short-haul D2D air-journey, the airport car trips can make up 22% of total emissions. Cabin to lounge conversion another low hanging fruit with potential to cut 3% emissions. Changing passenger airport travel mode adds value to airlines' decarbonization strategy.

    Abstract We conduct a literature review and develop an aviation travel-chain emission model by incorporating real-world data. Based on this we investigate a “door-to-door” air-travel carbon calculation concept, which includes emissions from flight (“gate-to-gate”) and non-flight segments, such as airport ground connections. With quantified results, we conduct scenario studies to enhance our understanding. Different carbon calculation methodologies are reviewed, and a modified methodology is applied to compare multi-segments of a “door-to-door” air-journey. The results indicate a substantial impact (up to 22%) when non-flight segments are measured against the flight. In addition, scenario analysis explores potential strategies to deliver measurable, scalable, and practical decarbonization outcomes in the transport context. In one scenario, our results suggest that to achieve a similar decarbonization outcome, the cost of sustainable aviation fuel (SAF) is comparable to a typical airport rail surcharge; the latter hence representing a “low-hanging fruit” that with improved coordination can be mitigated today.


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    Title :

    “Door-to-door” carbon emission calculation for airlines – Its decarbonization potential and impact


    Contributors:


    Publication date :

    2023-07-19




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




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