Global cycling and running heatmap

Posted to Maps  |  Tags: , ,  |  Nathan Yau

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.


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.

Interactive: When Do Americans Leave For Work?

We don’t all start our work days at the same time, despite what morning rush hour might have you think.

Years You Have Left to Live, Probably

The individual data points of life are much less predictable than the average. Here’s a simulation that shows you how much time is left on the clock.

Real Chart Rules to Follow

There are rules—usually for specific chart types meant to be read in a specific way—that you shouldn’t break. When they are, everyone loses. This is that small handful.