What is the nature of expressway Management Office?

I didn't know there was a expressway Administration Bureau under the Yunnan Provincial Communications Department. Except for Kunyu Expressway, expressway in Yunnan is all managed by highway investment companies, and many highway management offices under the highway investment companies, such as Kunming West Management Office and Kunming East Management Office, etc. I don't know if that's what you're talking about, but it's all corporate.

Secondly, both the traffic police and the road administration will have institutions specially responsible for the management of expressway. The former belongs to civil servants, while the latter belongs to the road administration corps and institutions.