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Three teenagers have been arrested on first-degree murder charges in connection to the death of a Colorado woman, who was struck by a rock that investigators say was thrown through her windshield while she was driving.

Mountain West states are some of the most expensive places to own a car, according to several data sets analyzed by Forbes Advisor. Nevada tied with California as the most expensive states, while Colorado ranked third.

State and federal officials are increasingly looking to reduce costly animal-vehicle accidents. They want to invest in more wildlife crossings on highways to limit collisions.

An ambitious new proposal in Fort Collins to reduce traffic deaths and serious injuries to zero in a decade plans to focus on road safety improvements in areas of the city at high risk for crashes.

A bill at the State Capitol would require first-time drivers under 18 years old to complete hours of drivers education courses. It also adds new requirements for driving with an instructor.

The American Automobile Association predicts national travel will be back up to pre-pandemic levels, with 54.6 million people traveling more than 50 miles for the holiday.