Emily Badger:

It is unquestionably true that Americans are driving less today than we did just a few years ago. Sometime around 2004, our addiction to driving – expressed on a graph in the decades-long steep expansion of “vehicle miles traveled” – took a turn in the opposite direction. Per capita, we began to drive fewer miles each year than we had the year before. As the U.S. population has continued to grow, our collective miles traveled by car has begun to stagnate.