This database presents existing results on the impact of a load on the total emissions of vehicles between 5 and 40 tons.

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The conditions for the inclusion of the results include: we know the mass of the vehicle as well as the mass of the maximum load; the results are from a publicly available publication in English.

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Since carbon emissions and fuel consumption levels are arguably proportional, we include both types of observations.

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In some cases, the results have been extrapolated under the assumption that carbon emissions and fuel consumption are linearly related to the vehicle mass (i.e. load)