BOSTON (CBS) – Yet another study has been issued confirming what we already knew – that Massachusetts is one of the worst states in the country to drive in.

This latest report comes from the website Wallet Hub, which based its ratings on four categories – safety, cost, access to vehicles and maintenance, and traffic and infrastructure, and it was our dead-last ranking in that last one that won us the seventh-worst ranking overall.

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Poor road and bridge quality is part of that category, but the bulk of it measured the volume of rush-hour traffic, what it does to commute times, and the impact of crummy driving weather.

How badly did we do?

Would you believe we ranked worse than Rhode Island?

As I said, this should come as no surprise to anyone. The state is slowly trying to upgrade our infrastructure, and maybe their efforts to fix the T will get some of that traffic off the roads. The weather, we can’t do much about.

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But we can do something about a factor the study doesn’t touch on – rudeness.

A grinding commute is only made worse by people who cut you off in a vain effort to gain ground by switching lanes, tailgaters, and other common forms of gratuitous local-driver misbehavior. And the self-serving road rage I see almost every day surely doesn’t help anyone control their blood pressure.

Forgive me if I don’t hold my breath waiting for that stuff to change.

But at least there’s one bright spot here – we were the fourth-best state in the nation when it comes to safety.

No wonder. It’s hard to get in an accident when you’re not moving.

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Talk back to me via email at keller@wbztv.com, or you can reach me on Twitter, @kelleratlarge.