We investigate the relationship between interstate highways and highway vehicle kilometers traveled (VKT) in US cities. We find that VKT increases proportionately to highways and identify three important sources for this extra VKT: an increase in driving by current residents; an increase in...

We investigate the relationship between interstate highways and highway vehicle kilometers traveled (VKT) in US cities. We find that VKT increases proportionately to highways and identify three important sources for this extra VKT: an increase in driving by current residents; an increase in...

We analyze the phenomenon of hub dominance by developing a model relating faresto distance, using the mainleg of intercontinental flights for scaling purposes. Our results indicate thatat least some of the major Europeancarriers place a mark up on flights originating from or going to their hubs.