Clone of Xan Gregg’s chart which he created using JMP (see his tweet). Xan’s chart used the data from another chart that Henrik Lindberg created (see this block for my reproduction of that chart).
This was an excuse to see how to implement a horizon chart using D3.
Here’s Henrik’s description of the chart:
Peak time of day for sports and leisure
Number of participants throughout the day compared to peak popularity. Note the morning-and-evening everyday workouts, the midday hobbies, and the evenings/late nights out.