She was a passenger in an SUV that was hit by another vehicle at the intersection of Cary Glen Blvd. and Green Level to Durham Rd.
The tragedy sparked public outcry over what many felt was a death that could've been avoided if the intersection had a traffic light.
Now there are lights. The Department of Transportation fast-tracked signals at the intersection following results of an engineering study that determined the intersection needed them.
The changes won't bring Kailee back, but the Birdsong family hopes the changes will prevent others from experiencing a similar tragedy.
The DOT made other improvements at the intersection including the addition of a pedestrian signal with push bottoms and countdown timers to enhance safety.
The signals begin a normal cycle after Thursday morning's rush hour.
