Nathan Bergey
Early GPS Tracking Visualization
After being constantly jealous of Aaron Parecki's and recently Charlie Loyd's awesome visualizations of years of GPS data, I started collecting some of my own.
This is about a week of GPS data from my (Samsung Galaxy S) phone.
Color is speed, green is fastest -- about 30 mph (bus trip) and red is slow. Size of the points is based on accuracy, but is not calibrated.
You can clearly see a walk I took to Safeway one day and several variations of bike routes downtown. Also noticeable is the really bad accuracy downtown where multipath and blocked signals from buildings really hurt GPS.
Early GPS Tracking Visualization
After being constantly jealous of Aaron Parecki's and recently Charlie Loyd's awesome visualizations of years of GPS data, I started collecting some of my own.
This is about a week of GPS data from my (Samsung Galaxy S) phone.
Color is speed, green is fastest -- about 30 mph (bus trip) and red is slow. Size of the points is based on accuracy, but is not calibrated.
You can clearly see a walk I took to Safeway one day and several variations of bike routes downtown. Also noticeable is the really bad accuracy downtown where multipath and blocked signals from buildings really hurt GPS.