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Crashworthiness

1 article on crashworthiness.

Traffic OS — Sign stands, sandbags and ballast in work zones

Sep 17, 2026

Sign Stands, Sandbags and Ballast in Work Zones

Ballast is the most improvised item in a traffic control yard and one of the few that can turn a device into a projectile. What the MUTCD says about ballasting cones, drums and barricades, why more is not better, and what a yard should standardise.