Bubble hit map

A custom built bubble map visualization of page hit data provided by Fwd Compliance. Each circle corresponds to a city at the center of the circle; the larger the radius, the more hits that have come from that city. You can hover over each disk to get information on the corresponding city.

Interactions

• Drag the slider to increase or decrease the number of cities displayed and reveal the cities beneath more clearly.
• Hover over a bubble to display the name of the city and number of page hits.
• Scroll or pinch to zoom in.
• When zoomed in, drag to pan.
• Viewing window is restricted.

This type of visualization gives a nice view of of the overall distribution of visits and illustrates the relative density very clearly. Getting information on specific regions is fairly difficult but I have added some functionality to help. You can use the slider to increase or decrease the number of cities displayed (up to 2500 of the nearly 6000 cities in the data). you can also zoom in a bit to help get a better view of a particular region.

An alternative view of the same data is presented in this hexbin map, which I think makes it much easier to parse regional information.

In addition, another bubble map that displays this data is presented in this Leaflet map. The main advantage of that map is the familiarity of the interface. This map has many other advantages including

• A more appropriate projection that does not distort area,
• States that are shaded to indicate the number of hits from each state,
• The ability to put exactly what we want on the map (like a few cities), but
• No other distractions.

This visualization was developed in this notebook on Observable. Note that the notebook is private, thus you must be logged in to the CDN Observable account to see it. This webpage is served completely independently of Observable.