The paper analyzes existing problems in China's freight car color coating, compares the gap between same products abroad, comprehensively analyzes relevant factors which affect freight car coating, uses system theory combined with specification of safe color, visual safety psychology and coating material technology and takes requirements such as type, structure, safety and corporate image into consideration to establish China's railway freight car color coating genealogy. It provides systematical advices for China's railway freight car color coating design and solves problems like single and disorder coating color, poor indicative of safety feature to improve the level of China's railway freight car coating design.
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