This was tested empirically by giving people access to a chauffeur temporarily. Not having to personally drive your car nearly doubles vehicle miles: http://www

This was tested empirically by giving people access to a chauffeur temporarily. Not having to personally drive your car nearly doubles vehicle miles: http://www.joanwalker.com/uploads/3/6/9/5/3695513/mustapha_et_al_-_final_transportation.pdf http://www.joanwalker.com/uploads/3/6/9/5/3695513/mustapha_e... The study is a pretty small sample though, so I would take it with a grain of salt.