PDF: State Transportation Statistics 2015 AcknowledgementsAbout State Transportation Statistics 2015Chapter 1: InfrastructureChapter 2: SafetyChapter 3: Freight TransportationChapter 4: Passenger TravelChapter 5: Registered Vehicles and Vehicle-Miles TraveledChapter 6: Economy and FinanceChapter 7: Energy and EnvironmentAppendices Updated: Wednesday, May 31, 2017