According to a new Brookings report, Americans in metropolitan areas have been living increasingly farther from where they work over the last fifteen years. This is attributed to their jobs moving farther away from them.

This shift is a result of migration of jobs from cities to suburbs beginning in the early 2000s.

Between 2000 and 2012, the number of jobs within the median commuting distance fell by 7%. This led to cities, which have denser populations, experiencing drops in employment as well as those who are employed traveling larger distances to get to work. 

Citylab has a more in-depth summary of the studies findings and analyzes the direction that trends may be going towards in the future.