The big blue dots are supermarkets; the little white dots are people...

The people behind this project...

A project by the UW Center for Public Health Nutrition (cphn.org) and the UW Urban Form Lab (depts.washington.edu/ufl), this video shows the traces of 493 study participants wearing GPS devices. It visualizes proximity to supermarkets in the Seattle area over the course of one week.

Sadly, there is no information about the jazzy music that makes this video.