How many kilometers does Changsha-Zhuzhou-Xiangtan freight run a year?

Changsha-Zhuzhou-Xiangtan trucks run 20 thousand kilometers a year. Changsha-Zhuzhou-Xiangtan refers to the Changsha-Zhuzhou-Xiangtan Joint Economic Zone in Hunan Province, China. The average daily mileage of freight vehicles is between kilometers, and the mileage of a year also depends on the number of operating days. For example, a freight car travels 200 kilometers a day and operates for 300 days a year, so the mileage is 60 thousand kilometers a year. Vehicles travel 100 km every day and operate for 200 days a year, so the number of kilometers traveled each year is 20,000 km.