Internalisation of external costs strategy
In 2006, the European Parliament asked the Commission to present "a generally applicable, transparent and comprehensible model for the assessment of all external costs to serve as the basis for future calculations of infrastructure charges". Furthermore, “this model shall be accompanied by an impact analysis of the internalisation of external costs for all modes of transport and a strategy for a stepwise implementation of the model for all modes of transport". This request was included in the Directive on the charging of Heavy Goods Vehicles in the EU ("Eurovignette" Directive).