The irregularly mooring boats are becoming big troublesome problems with other commercial vessels and fisheries boats in harbors and rivers. The port authorities are planning to develop new marinas for the irregularly boats on private finance initiatives. However, the authorities are proceeding with the projects in confusion due to a lack of the information which constructing and operating scheme is best minimizing finance expenses of the public sectors over the life of the project contract.
In this paper the some number of key messages are shown, i.e. the public private partnership method which the construction costs are shared between public sector and private sector is best one for the value for money, and it is necessary for the Japanese government to attempt the PFI contractors as public sectors for theincome tax collection of the companies to avoid the tax transfer from local governmento national government.