Harperdog sends this excerpt from Miller-McCune:
"A study (abstract) of eight industrialized countries, including the United States, shows that seemingly inexorable trends — ever more people, more cars and more driving — came to a halt in the early years of the 21st century, well before the recent escalation in fuel prices. It could be a sign, researchers said, that the demand for travel and the demand for car ownership in those countries has reached a saturation point. 'With talk of "peak oil," why not the possibility of "peak travel" when a clear plateau has been reached?' asked co-author Lee Schipper ... Most of the eight countries in the study have experienced declines in miles traveled by car per capita in recent years. The US appears to have peaked at an annual 8,100 miles by car per capita, and Japan is holding steady at 2,500 miles."