Road (image) University of Washington Caption Greenroads evaluates a road's environmental and social impacts. It assigns points for such things as using local or recycled materials, managing runoff and providing wildlife corridors. Credit University of Washington Usage Restrictions None Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.