Multimodal

• National Transportation Statistics, Chapter 3: Transportation and the Economy (BTS)
• Transportation Services Index (BTS)
  Seasonally adjusted index that measure the movement of passengers and freight in the US (monthly)
• Transportation Economic Trends
• Government Transportation Financial Statistics (BTS)
  Federal, state and local revenue and expenditure data
• Transportation Satellite Accounts (BTS)
  measures contribution of the transportation industry to the economy
• Gross Domestic Product by Industry Bureau of Economic Analysis - (DOC)
• Consumer spending by industry Bureau of Economic Analysis - (DOC)
• Employed persons Bureau of Labor Statistics - (DOL)
  by age, sex, race, ethnicity and industry
• Industry productivity data Bureau of Labor Statistics - (DOL)
• Industries at a glance - Transportation and Warehousing Bureau of Labor Statistics - (DOL)
• Economic/Financial Data
• Federal Subsidies to Passenger Transportation

Air

• Air Fare Statistics (BTS)
  Quarterly airline prices since the first quarter of 1995
• Seasonally-adjusted airline data
• Guide to US Air Carrier financial statistics (BTS)
• Consumer Air Fare Report (OST)
  Includes quarterly airfares by origin and destination pair
• Guide to US Air Carrier employment data (BTS)
• Airport Funding and Grant Data (FAA)
  Information on FAA grants to airports
• Aerospace Forecasts (FAA)
  Projections of airline traffic and financial data 20 years into the future
• Airline Industry Performance Measures
• An Analysis of Labor and Multifactor Productivity in Air Transportation
• A Primer on Multifactor Productivity: Description, Benefits, and Uses
• Transportation Investment and GDP, Some Concepts, Data, and Analysis

Highway

• Highway Statistics (FHWA)
  Vehicles, drivers, miles of roadway, fuel, finance, and vehicle miles
• Seasonally-adjusted data
  • Seasonally-adjusted vehicle miles traveled data
  • Seasonally-adjusted Truck Tonnage
• Our Nation's Highways 2011 (FHWA)
  Annual report on highway funding, infrastructure, traffic, etc.
• Toll facilities data (FHWA)
  Statistics on toll bridges, tunnels, highways and ferries in the US
• Freight Facts and Figures 2011 (FHWA)
  Volume and value of freight shipments, the extent of the network, employment and productivity, and related safety, energy use, and environmental effects.
• National Automobile Dealers' Association Trade association
  monthly and annual auto sales data
• Estimation and Analysis of Multifactor Productivity in Truck Transportation: 1987–2003

Rail

• Railroad Financial and Statistical Reports (STB)
  Traffic, financial, employment reports on freight railroads (annual and quarterly)
• Seasonally-adjusted and Unadjusted Rail Freight Carloads
• Seasonally-adjusted and Unadjusted Rail Freight Intermodal Traffic
• Seasonally-adjusted and Unadjusted Rail Passenger Miles

Transit

• Grants to Transit Agencies (FTA)
  Report on grants awarded to local transit agencies by the Federal Transit Administration
• Seasonally-adjusted and Unadjusted Transit Ridership

Pipeline

• Seasonally-adjusted and Unadjusted Petroleum Movement
• Seasonally-adjusted and Unadjusted Natural Gas Consumption

Maritime

Seasonally-adjusted and Unadjusted Tonnage Carried On Internal U.S. Waterways