What is the best way to drive from Korla to Chengdu in winter?

It's good to drive from Korla to Chengdu by expressway in winter. The route from Korla to Chengdu is as follows:

1, full expressway, namely Korla, Turpan, Hami, Jiayuguan, Jiuquan, Zhangye, Wuwei, Lanzhou, Tianshui, Longnan, Guangyuan, Mianyang and Chengdu. Although this road is the longest, it is the fastest, densely populated and convenient to eat and live.

2. Depart from Korla, pass through Ruoqiang County, arrive at Delingha City, Qinghai Province along National Highway 3 15, then transfer to Made Expressway to Barkam City, Sichuan Province, go south in Marcand along National Highway 3 17, and arrive at Chengdu via Wenchuan County and Dujiangyan City. This road is closer than the first one, but it passes through the high-altitude area in the eastern part of the Qinghai-Tibet Plateau, and the whole line is basically dominated by national roads. This line is vast and sparsely populated, and it is inconvenient to eat and live. Famous scenic spots include Ya Dan landform in Qaidam Basin, Golog alpine grassland in Golog Tibetan Autonomous Prefecture in the east of Qinghai-Tibet Plateau, Tibetan folk customs, Lianbao Yeze in Aba County, the Yellow River and Yangtze River watershed, Tusi Guanzhai in Zhuokeji, Marcand, Bipenggou, etc. It belongs to the magnificent plateau scenery.