CNN has an account of a great program to insure rides for elderly drivers so they are able to give up driving when it's time.

http://www.cnn.com/2006/US/01/16/rides.seniors.ap/index.html

It's one example of how people often take their pain over something that's happened and put it towards solving the problem. I'd love to see this idea spread across the country and it's a timely issue with the baby boomers poised to give up their cars in the next 10-30 years or so.