1. This method wouldn't work in heavy traffic. 2. That "nearly constant 10mph breeze" is improving fuel efficiency for the cars behind you through reduced wind

1. This method wouldn't work in heavy traffic. 2. That "nearly constant 10mph breeze" is improving fuel efficiency for the cars behind you through reduced wind resistance. 3. A similar idea for generating power from traffic is through the use of speed bumps as power generators. But that doesn't work either. Here's an interesting article from wired: http://www.wired.com/science/discoveries/news/2001/06/44518 http://www.wired.com/science/discoveries/news/2001/06/44518