1. Monitor the trend of trunk line operation efficiency and transportation cost in all regions of the country, and regularly output analysis reports, focusing on areas with abnormal transportation costs.

2. Dig deep into abnormal cost areas, including going to abnormal areas, understand the root causes that affect transportation costs, output optimization suggestions, and promote improvement.

3. Sort out various cost factors and build a systematic cost analysis framework.

4. Promote the online monitoring report of key costs.