No—the Arc de Triomphe itself doesn't cause accidents. It's a stone monument at the center of Paris's Place Charles de Gaulle, where 12 avenues converge in a notorious traffic circle. The roundabout—not the arch—creates the chaos.
Drivers navigate a free-for-all merge with minimal lane markings, yielding rules that confuse tourists, and constant flow. The monument is blameless; the intersection design is the culprit. (Locals know: assertiveness and anticipation are survival skills here.)