Should I bring a snow chain when driving on the Sichuan-Tibet line in May?

No need. In May, the temperature gradually rose. At this time, travelers began to take the Sichuan-Tibet line 3 18, and there was basically no ice and snow on the road, and the azaleas had already bloomed. At this time, there is no need to bring a snow chain when traveling. However, you have to bring thick clothes such as cotton-padded clothes. The plateau climate is changeable, so we should prepare some thick clothes to prevent the weather from getting cold.