Two people have been killed in two separate work-zone crashes on Oklahoma highways in the past two weeks, prompting road safety experts to stress the importance of safer driving.

Tom Robins founded Work Safe Zone, a safety education program adopted by Oklahoma. Teens in the state are required to take the course before getting their driver's license.

"Our mission is for every driver to know there's a face and family behind every flag, cone, and flashlight," said Robins.

On Monday, 36-year-old Zac Rinehart — a husband, father and volunteer firefighter, was killed while picking up debris along the Will Rogers Turnpike. He and another crew member were struck by a driver.

"The driver of the semi made a statement to us that he dropped a GPS device he was reaching down to the floorboard," sai

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