Tube Times Index Compiled by Andrea Dudrow

  1. Total registered vehicles in the United States in 2000: 217.3 million
  2. Number of new registered vehicles in the U.S. in 2000: 4.61 million
  3. Growth in vehicle population as compared to growth in human population in 2000: twice the rate
  4. Number of miles traveled by car in the U.S. in 2000: 2.688 trillion
  5. Number of miles traveled by car in the U.S. in 1999: 2.691 trillion
  6. Last year before 2000 when there was a decline in the number of vehicle miles traveled: 1981
  7. Percentage of bicycle riders who would commute to work if safer bike routes were available: 46 percent
  8. Number of people who would increase the number of trips they take via walking if there were safe, designated paths or walkways: 59 percent
  9. Amount of annual energy consumption in the U.S. accounted for by highway travel: 22 percent
  10. Amount of carbon monoxide generation in the U.S. accounted for by mobile source emissions from highways: 70 percent

    Sources: 1-6 U.S. Department of Transportation; 7, 8 1991 Harris Poll; 9, 10 Center for Transportation Analysis Compiled by Andrea Dudrow