Is Tomb-Sweeping Day high-speed freight car restricted?

During the Qingming period, the expressways in our city were closed to dangerous chemicals transport vehicles and large transport vehicles all day, and some important sections and nodes implemented traffic control policies.

Tomb-Sweeping Day is a traditional major Spring Festival. It is a fine tradition of the Chinese nation for thousands of years to sweep graves and cherish the memory of ancestors. It is not only conducive to promoting filial piety, awakening family memories, but also conducive to promoting the cohesion and identity of family members and even the nation. Qingming Festival is not only one of the 24 solar terms, but also a traditional festival in China. At this time, everything is thriving, the weather is fine and the scenery is clear, so it is called "Qingming".