There have been a number of recent threads both here and elsewhere that have raised this question in my mind. There are some very bright individuals who frequent this forum, and I would like to read some of your insight. Personally, at least here in the States, I don't think the general public would change their driving habits for any reason--save some horrible catastrophe which knocked us back to an early 1900's tech level--would drive the average Joe to give up their four wheeled vehicle for anything else be it a bike or whatever. Please take this in the good spirit that it is intended. What are some practical strategies that would make a measureable impact? I personally don't own a vehicle and put somewhere between five thousand and ten thousand miles on my bikes, and the singular bummer of riding a bike is putting up with the hordes of motorists burning up the roads and threatening my life and limb almost daily with their careless driving.
I apologize if this has been beat to death, but a casual search of the posts turned up little specific to what I am asking.