The percentage of all Colorado traffic deaths that were marijuana related increased from 11.43 percent in 2013 to 21.3 percent in 2017.

Section I: Traffic Fatalities & Impaired Driving  Since recreational marijuana was legalized, marijuana related traffic deaths increased 151 percent while all Colorado traffic deaths increased 35 percent  Since recreational marijuana was legalized, traffic deaths involving drivers who tested positive for marijuana more than doubled from 55 in 2013 to 138 people killed in 2017. o This equates to one person killed every 2 ½ days compared to one person killed every 6 ½ days.  The percentage of all Colorado traffic deaths that were marijuana related increased from 11.43 percent in 2013 to 21.3 percent in 2017.