Global cycling and running heatmap

Nov 21, 2017

A few years back, cycling and running app Strava mapped the paths of its users. Now with a lot more data and the challenges that come with that, Strava provides a more fine-tuned rendering of where the world cycles and runs.

Beyond simply including more data, a total rewrite of the heatmap code permitted major improvements in rendering quality. Highlights include twice the resolution, rasterizing activity data as paths instead of as points, and an improved normalization technique that ensures a richer and more beautiful visualization.

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This is an American Workday, By Occupation

I simulated a day for employed Americans to see when and where they work.

Life expectancy changes

The data goes back to 1960 and up to the most current estimates for 2009. Each line represents a country.

10 Best Data Visualization Projects of 2015

These are my picks for the best of 2015. As usual, they could easily appear in a different order on a different day, and there are projects not on the list that were also excellent.

Causes of Death

There are many ways to die. Cancer. Infection. Mental. External. This is how different groups of people died over the past 10 years, visualized by age.