what is the solution?[for transportation]

is it let's quit using oil tomorrow? next year? 5 years? 10 years? 20 years? 30 years?
i think the later. at that time and along the way we will use much less. but what i truely believe that having a total solution has to involve the production of oil since there are 250 million passenger cars and light weight trucks on the road today.
we as a nation have suppprted, protected, and rebuilt most of the civilized world twice. what should our role be today?
should we drill? should we walk? should we ride bikes? anyone have any ideas?i hear a lot of good ones here. a lot of them are well into the future. some are closer. i would really like to know what everyone thinks. this would start a process of looking at it from as far to the right and left as we can and working toward the center. i know opinions very but someday we have to have a plan.[etched in stone] anyone think they have a good one? please let me know.