The impact of a new casino on the motor vehicle crash patterns in suburban Maryland.

Abstract Background Many states have legalized casino gambling, and casinos create increased vehicle traffic, but the strength of the association between casino construction and vehicle crashes is unknown. Methods Retrospective analyses of motor vehicle crashes (MVCs) occurring within Anne Arundel County, Maryland (2010–2014) were conducted. The ratio of crashes within one mile of the casino’s location after it was opened were compared to the ratio occurring in the same area before it was opened to determine how the incidence of MVCs near the casino changed with time. Logistic regression was used to determine how crash characteristics may have influenced the incidence of MVCs near the casino after it opened. Results 101,860 persons were involved in 43,328 MVCs in Anne Arundel County during the study period; 29,476 (68.0 %) had an at-fault driver ≥21 years of age and complete data. MVCs proximal to the casino occurred most commonly during the day (N = 421, 76.6 %) and involved drivers Conclusions In this single-site study the opening of a casino was associated with an increase in crashes nearby. The generalizability of this finding should be confirmed with analysis of MVC data near other gambling venues.