Collision data (2013 latest) from the California Office of Traffic Safety (OTS) show the number of fatalities and injuries in different categories. The data shows total number alcohol related accidents has declined, the trend in total collisions also reduced. Excess speed remains the greatest contributor to accidents. (The total collisions in a year are not the sum of all categories in that year.) Click chart to enlarge.
The data shows Laguna's traffic safety ranking among other similar cities has improved slightly. For 2013 in the Total Fatalities and Accidents category Laguna ranks 4/105, that's fourth from the worst in 105 cities. Laguna bottom among most of the categories measured. The safety spike in 2011 might be due to the increase in DUI arrests, more information is not available.
This chart shows the number of Laguna DUI arrests as a percent of city population. The number of DUI arrests for California average is 0.84%. DUI records in this chart are from the Department of Justice and different than the alcohol related categories above.
Data for the rankings is taken from several agencies, including the California Highway Patrol (CHP) Statewide Integrated Traffic Records System (SWITRS), California Department of Transportation (Caltrans), California Department of Justice (DOJ) and the Department of Finance (DOF). -LS