California, the nation’s most populous state, accounted for 4,061 of those fatalities, highlighting the ongoing risks drivers face every time they get behind the wheel. Alcohol and Speed: California’s Twin DangersNationally, drunk driving (30%) and speeding (29%) are the two leading causes of traffic deaths. Men are vastly overrepresented, making up 75% of fatalities (3,037 deaths) compared to women at 25% (1,013 deaths). Omega Law: Advocating for Victims and Families“So many of these deaths are preventable,” said a spokesperson for Omega Law. “Every choice to speed, drink and drive, or check a phone behind the wheel puts lives at risk.