Figure 3. Heat maps showing density of fatal collisions

From

Fueled by an Epidemic: A Spatial Analysis of Opioid-Positive Drivers Fatally Injured in Motor Vehicle Collisions in West Virginia, 2011-2015

Toni M. Rudisill

American Journal of Public Health Research. 2017, 5(4), 124-129 doi:10.12691/ajphr-5-4-5