| The transportation corridor function of expressway needs its derivative service functions to support. The paper expounds its content of service functions as perfect expressway, boldly proposes that stowage service functions may be important part of derivative service functions of expressway, thoroughly analysises the produced reasons and influence factors of expressway stowage service demands, the designed stowage Service facilities of expressway insure its closed, unblocked and ordered in operation, and carries on the different investment ways and managers. It suggests that the policies benefit to develop stowage services of expressway in concepts, industries, laws, investment systems and operations. |
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