My goal is to make it painfully easy to live in communities where you can walk, bike, or take public transport to all of your daily needs, which is a completely low tech problem with a huge social science component.
The first step, I think, is making it obvious when purchasing a home whether you will be able to do this yourself.
Want to collaborate? I have a pilot project going for Ireland and am unsure where to take it - www.gaffologist.com (it's buggy AF but it got me my own home!)