If you're traveling by car for the holidays, you might want to keep an extra close eye on your speedometer − because on many roads throughout the country, cameras will be watching how fast you're driving.

In New York, that could mean paying up to $600 for that lead foot.

Speed cameras that can fine you for driving too fast, even if a police officer isn't around, are sprinkled all over the nation. According to the Insurance Institute for Highway Safety , more than 300 communities across the United States use cameras to monitor speeding.

The insurance institute calls speed cameras "an important tool" to help reduce speeding, which in turn reduces crashes, injuries and fatalities.

What states have speed cams?

Hawaii allows the use of speed cameras statewide. In Arkansas, Kentucky and I

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