Carolyn Joy Vadas, 30, of 12040 Ludhorne Road in Cumberland County, was walking along the road around midnight, troopers said. Vadas stepped into the roadway, and a car then struck and killed her.
Troopers said a pedestrian traffic violation caused the wreck, and they do not plan to file charges against the driver.
Investigators did not know why Vadas stepped out into Carroll Store Road.
The accident occurred about 8 miles north of Autryville and 8 miles west of Piney Green.