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* Transportation Mode impact - when we do not know the mix of transportation modes used between countries, we will assume that the worst mode has been used, i.e. the mode with the worst impact.
 
* Transportation Mode impact - when we do not know the mix of transportation modes used between countries, we will assume that the worst mode has been used, i.e. the mode with the worst impact.
   −
The formula for the score of an origin for a country is then:
+
The formula for the score of an origin for a country is:
    
score<sub>origin</sub>(country) = 100 - max(impact<sub>origin</sub>(maritime), impact<sub>origin</sub>(road)) / max<sub>all origin</sub>(impact(maritime))*100.
 
score<sub>origin</sub>(country) = 100 - max(impact<sub>origin</sub>(maritime), impact<sub>origin</sub>(road)) / max<sub>all origin</sub>(impact(maritime))*100.
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 +
with
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* impact<sub>origin</sub>(maritime) - the impact for origin for the maritime transportation mode of origin
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* impact<sub>origin</sub>(road) - the impact for origin for the road transportation mode
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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.
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* max<sub>all origin</sub>(impact(maritime)) - the maximum impact of all maritime origins
    
If we have the transportation mix this becomes:
 
If we have the transportation mix this becomes:
3,393

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