Why does the express train from Shanghai to Rizhao pass through Qingdao?

The express delivery from Shanghai to Rizhao will pass through Qingdao, and the transport vehicles will take different routes. It is because the transportation vehicles take different routes, the transfer department is certain, and the transfer scale of each company is different. Express delivery: On June 20 10, with the approval of the State Council, China Post Group Corporation and provincial postal companies jointly established a state-owned joint-stock company. EMS can be divided into air transport and land transport. The main domestic express delivery companies are: Jingdong Logistics, SF Express, Leap Express, Best Express, ZJS, ZTO Express, Shentong Express, Tong Yuan Express, Dayun Express and Guo Tong Express. Service companies derived from door-to-door logistics activities with postal functions are called courier companies, which use railway, highway and air transportation.