In 2012, Iowa treated a crash-prone urban bridge with a high-friction surface; skid readings rose from 30s–40s to 90s–100s, with 4 crashes in a year
A busy bridge in Cedar Rapids, Iowa, became a recurring trouble spot for drivers, especially when rain or ice reduced the road surface’s grip. In the years before 2012, more than 54 crashes were recorded at the location, prompting transportation officials to look for a solution that could improve safety without shutting down a major … Read more