PURPOSES: In this study, a method of maximizing visibility by effectively installing rear reflectors on freight cars was analyzed to reduce traffic accidents caused by poor visibility of trucks at night. METHODS: Comparisons were made when a (1) rear reflector, (2) rear reflector and line contour, and (3) rear reflector and full contour were installed in a truck using virtual driving simulation. The safety level of each installation method was quantitatively analyzed by selecting the cognitive distance, safe distance maintenance, and deceleration in the case of using stone embankment as an effective safety measure. RESULTS : When the rear reflector and full contour was installed, the cognitive range was the longest, and the safety distance could be maintained for a relatively long time. In addition, it was possible to stop or avoid a collision when a sudden event occurred. CONCLUSIONS: The severity of rear-end crash with freight cars is very high at night, mostly because drivers are unaware of the freight car ahead. Accidents can be prevented if drivers can recognize cargo trucks. Based on the results of this study, the installation of a truck's rear reflector and full contour system will enhance night visibility, and the number of traffic accidents will also decrease.