Mar 30 Politics National Transportation Safety Board Chair Traveling to Louisville Deborah A.P. Hersman will left Washington D.C. Wednesday, in the passenger seat of a tractor-trailer. She will ride with five different truck drivers on her trip, which is meant to give her first-hand knowledge of the challenges drivers face and any potential safety hazards on the roads. By Gabe Bullard Mar 30 Politics National Transportation Safety Board Chair Traveling to Louisville Gabe Bullard