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Sirens for Safety on Iowa Roads | Sioux City News
Ever hear loud sirens during overnight road work? It’s not an emergency — it’s a lifesaving tech called crash attenuators, deployed by Iowa DOT to protect crews. These trailers absorb impact if a car gets too close, and if needed, blast a deafening alarm to stop distracted or speeding drivers. First used in Iowa in 2018, this system is crucial as traffic surges. Though noisy for nearby residents, officials say it’s a necessary safety net — one that recently saved a crew from a potentially deadly crash. Next time you hear the alarm, know it’s better than an ambulance call. Listen in…
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