The City of Lake Forest has some of the lowest number of vehicle accidents involving injury or death in the state when compared to other jurisdictions with similar populations, according to a review of accident data by the City’s Traffic Engineer.
New City software made the study possible. The intersection safety study will be completed annually.
Using data from 2016, the most current calendar year for which information is available, staff developed a list of the top 50 locations with at least two collisions in the City. The collision totals ranged from a high of nine to a low of two. Of the 50, only 16 locations had four or more collisions. Since a pattern or trend is usually defined as five or more of the same type of collision in a 12-month period, staff limited this review to the top 16.
A review of that information and the individual collision diagrams suggests that there are no unusual patterns or trends at 15 of the 16 study locations. Staff did find a pattern at the intersection of Lake Forest/Rockfield that warranted additional review. There, red-light violations were suspected, so staff recommended increasing the amount of time that all of the lights in the intersection are red from 1 to 1.5 seconds.
All of the intersections in Lake Forest use the “all red” system, which increases safety. Staff also noted that 94 percent of all collisions are caused by driver error, while 2 percent are attributed to vehicles issues, 2 percent by the environment and the remaining 2 percent by unknown factors, according to the National Highway Traffic Safety Administration.