This paper, starting from the U.S. experience (USGBC LEED) in the building field, through GBC ITALIA, underlines the need of a specific methodological approach in our country for a roads sustainable design. Therefore, we propose criteria for the methodological approach of a handbook of sustainability. In this guideline required and voluntary project requirements are identified; for each of these objectives, benefits, standards of reference and its methods of implementation are suggested. The above guideline, using detailed development tools (VA, LCA), could provide guidance to the road-designer in the evaluation and selection of strategies to drawing-up project performance standards of sustainability.
