2 pieces of technology may make roads safer

The study was released on Tuesday by the non-profit Highway Loss Data Institute.

It found that forward collision avoidance systems reduce accidents by 14-percent. They use radar or lasers built into the grill, to warn you if you're about to rear-end another vehicle. If you ignore the warning, some autos just brake themselves.

"If you avoid one crash, it's paid for," said David Zuby from the Insurance Institute For Highway Safety.

Researchers also found that adaptive headlights, which turn to shine around corners, also help cut the number of accidents. But technology that alerts drivers when they're drifting off the road, actually appeared to slightly increase accidents.

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