(CNBC) — Don’t read this story if you’re stuck in traffic. It will only lead to road rage.

The average commuter wasted 42 hours — more than a typical work week — and $960 last year snarled in traffic, according to a recent study from the Auto Insurance Center, an insurance information website.

That’s just the average. Commuters in large metropolitan areas, especially Washington, D.C., New York City, and Los Angeles, had it far worse.

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