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Do We Need

Do We Need. Traffic?. Roy Kienitz, June 2012. What’s Up With Driving?. 1. Exponential Growth. More Growth Not Possible. Design Capacity. Exponential Growth. Add Capacity. Exponential Growth. Exponential Growth. Exponential Growth. Exponential Growth. Exponential Growth.

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Do We Need

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  1. Do We Need Traffic? Roy Kienitz, June 2012

  2. What’s Up With Driving? 1

  3. Exponential Growth More Growth Not Possible Design Capacity

  4. Exponential Growth Add Capacity

  5. Exponential Growth

  6. Exponential Growth

  7. Exponential Growth

  8. Exponential Growth

  9. Exponential Growth

  10. Exponential Growth

  11. No net growth For 8 years

  12. Driving Per Person, 1980- 2011 -- Peaked in 2004 -- GDP has since grown 8% while VMT per capita fell 6% -- Current level equal to 1997 -- Decline not slowing; decrease in 2011 was 2%

  13. % of Teenagers With Drivers’ Licenses

  14. % of Teenagers With Drivers’ Licenses

  15. Driving Behavior In Germany By Age Group (Km per day)

  16. Driving Behavior In Germany By Age Group (Km per day) -20% In 2000 ½ of German men 18-29 owned a car, today about 1/3.

  17. What Does This Mean For Us? 2

  18. I-5 Bridge, Columbia River

  19. SR-520 Bridge, Seattle WA

  20. Tappan Zee Bridge, New York

  21. What About Transit? 3

  22. Transit use crashed after WWII 23 billion in 1945 to 7 billion in 1971

  23. A Very Different Story Today

  24. Almost all new riders are on rail

  25. Transit Use in Germany, By Age Group

  26. airport construction helped air travel grow

  27. 27,000 flights per day

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