This research project was undertaken to attempt to make a positive impact on the manner in which NC DOT collects data during accident investigations. Twenty-seven accidents were analyzed using a diagnostic investigation technique designed to allow the investigator to identify multiple causes and influences that will impact the individual accident under investigation as well as the organizational safety management in general. The model was used on two additional accident investigations to further validate its utilization. Recommendations are made to change the forms utilized during incident investigations. The Riskmaster system, a descriptive technology, was evaluated for possible changes to impact accident diagnostics.