Home Videos Heavier vehicles on U.S. roadways putting strain on guardrails during crashes, study finds Heavier vehicles on U.S. roadways putting strain on guardrails during crashes, study finds Feb 19, 2024 comments off Tweet on Twitter Share on Facebook Pinterest breaking news evening news Health International News Lester Holt Making A Difference National News NBC Nightly News news Nightly News politics U.S. News world news