ROAD PAVING

Ann Arbor just paved two residential streets using asphalt mixed with recycled tire rubber—a small but meaningful test of a technology that’s been around for decades. Workers spread the dark, rubber-speckled pavement on Northbrook Place and Oakbrook Drive, turning about 2, 000 scrap tires into road

Colorado Springs is trying out some cool new tech to make their roads last longer. They're using special asphalt that's tougher and more durable. This stuff is called stone matrix asphalt, or SMA for short. It's thicker and harder to work with, but it's supposed to hold up better, especially on busy