Size corresponds to the number of deadly traffic accidents over ten years, and color corresponds to the area’s rate of incidents involving intoxication.
Map Courtesy: UXBlog

The South Sound’s statistics are an embarrassment:

“This map illustrates ten years of traffic fatality incidents by where, how much, and the extent to which intoxication was involved (a big merge of FARS data). In this manner regions and cities, and the neighborhoods therein, can be visually characterized and compared. More on the whys and hows of this map below, as well as a load of insets,” quoting UXBlog.
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