So maybe we need to start looking at why we are travelling around so much? What can we do to reduce the need to travel? These are hard, social as much as economic and technological questions. The dumbest solution is just to build more capacity. The more intelligent solution is to find ways to doing what needs to be done without spending so much time and energy on the travelling itself.
There is far far to many cars on our roads for a start,yes i agree with what you are saying about finding ways of cutting time down on travel,thats not going to happen overnight.but we need capacity for the demand.