Spring Festival known as Chinese New Year (chūn jié, 春节), most of East Asia countries are celebrating this festival during lunar New Year's Day. Spring Festival become more famous than before since migration of Asian population. People bring their convention and inherited. Yet there are some significant problems in China during Spring Festival in resent years. Most of them are around traffic, pollution, crime rate, and online shopping. Chunyun (春运, chūn yùn) is a big population immigration in China before lunar New Year, people try to find traffic transports back to their hometown on time. Trains are the most economy transports in China, There are lots of problems in potential, such as commit a crime on train, dispute between passenger to passenger, and transportation safety.