The University of Washington and CH2M HILL have released a new sustainability rating system for roads.
The system aims to evaluate road projects' design, source materials and hauling activities.
"The 'Greenroads Rating System v1.0 (short version PDF)' is segmented into two major sections: Project Requirements and Voluntary Credits. The rating program features 11 'Project Requirements' that must be met in order to be certified Greenroads. Requirements include noise mitigation, low-impact drainage solutions, storm water management and waste management plans.
Participants in the program can also choose to pursue any of the 118 'Voluntary Credits' such as providing scenic views, using recycled materials, incorporating quiet pavement and accommodating non-motorized transportation."