U.S. commuter mode share to work, 1970-2014
U.S. vehicular ownership by household, 1970-2014
Travel to work by city in 2014: 15 largest cities and all cities with more than 30,000 commuters
Commuting by transit, 1970-2014, 10 largest commuting cities
Commuting by car, 1970-2014, 10 largest commuting cities
Travel to work by urbanized area: 15 largest urbanized areas and all urbanized areas with more than 75,000 commuters
Travel mode shares account for commuting travel only. Most travel is not work-based travel, but data on such journeys is not readily available.
Urbanized areas are Census-defined developed regions surrounding cities in the U.S.
- Mode shares for commuters and vehicular ownership: U.S. Bureau of the Census: Census 1970, Census 1980, Census 1990, Census 2000, American Community Survey 2006-2010, American Community Survey 2010-2014.