亚洲 · 综合新闻 · Hindustan Times
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
After 54 crashes in four years, Iowa treated an I-380 bridge with high-friction surfacing; skid resistance rose, followed by four crashes in a year.
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