Environmental Engineering Reference
In-Depth Information
considered. The critical values must be obtained in terms of distance, and the objective
values in terms of distance and convergence, also expressed in absolute terms, or
percentage of improvement.
Given that the objective value has been fixed at a reduction coefficient of 0.5
(fatalities in 2010/fatalities in 2000) for the EU, greater progress should be seen in
more local areas, as the distance is greater with regard to the value of the highest
scope (in this case the EU).
Therefore the objective reduction coefficient should be modulated using a
normalized multi-criteria function depending on the population of the area
considered and the distance of the relative accident rate compared to the average
value for the EU. This coefficient may vary between 1 (hypothetical case of an
initial accident rate of practically zero), and 0 (theoretical case of total initial
accident rate for the population).
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