sustainable mobility chalmers technical meeting alliance for global sustainability november 8 2005 robust near term steps towards a energy future david h marks goulder family professor of engineering systems and civil environmental co director mit lab the environment 2 is not an end in itself it means to accessibility ease by which desired social economic activities can be reached from specific point space ability overcome distance one enhancing other change spatial distribution reduces distances that must replace actual contact with virtual reach out touch someone ever seen computer deliver package 3 different meanings two quite distinct possibilities operational current continue handle loads we are putting on them plus meet expected growth demand even if operationally same true their impacts both important 4 why basic need modern society people require
