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1,351 bytes removed ,  14:24, 21 January 2021
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* max(impact<sub>origin</sub>(maritime), impact<sub>origin</sub>(road)) - the maximum impact of the two transportation modes for the origin.
 
* max(impact<sub>origin</sub>(maritime), impact<sub>origin</sub>(road)) - the maximum impact of the two transportation modes for the origin.
 
* max<sub>all origin</sub>(impact(maritime)) - the maximum impact of all maritime origins
 
* max<sub>all origin</sub>(impact(maritime)) - the maximum impact of all maritime origins
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=== Transport environmental impact ===
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The environmental impact of transport logistics is multifold: from the infrastructure itself to the usage of the infrastructure. Usage impact is not only CO<sub>2</sub> emissions, but also small particles, replacement of vehicles, etc, etc. ([https://en.wikipedia.org/wiki/Environmental_impact_of_shipping wikipedia])
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Agribalyse attempts to combine all impacts into a single number (pef). We need a similar number for transport logistics. And this number needs to be comparable to the Agribalyse umber, so that the two can be combined. Is any such data available?
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The Agribalyse analysis lists the CO<sub>2</sub> impact for each product category. This CO<sub>2</sub> impact is 21.6% of the total impact ([https://docs.score-environnemental.com/methodologie/acv ref]).
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If we have a CO<sub>2</sub> impact and percentage for transport, the two numbers can be combined.
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The Eco-score-model uses a mix of transport modes for each country as taken from the Eurostat report. Why use a mix of modes, when for the food products only one mode is relevant? The eco score document speaks of "marchandises" numbers. Is this the food part?
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From the Ademe via the Eco-score documentation (can not access Ademe data):
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* Road 79 g eq./Tkm
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* Maritime (Suez) 7 g eq. per tonne km
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* Maritime (Atlantic) 11 g eq. per tonne km
      
== Calculation method ==
 
== Calculation method ==
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