This document summarizes the evaluation of a public health surveillance system pilot project in Thika and Naivasha, Kenya that monitors injuries, especially from road traffic accidents. Road traffic accidents account for over 50 million injuries worldwide each year and are a leading cause of death for those aged 5-44. The goals of the surveillance system are to estimate and monitor injury incidence, identify risk factors and areas to improve prevention programs and policies, and evaluate prevention programs. The system defines and collects data on road traffic injuries and fatalities presenting at health facilities in the two pilot locations to inform injury prevention efforts in Kenya.