In recent years, Electronic money bussiness that use contactless IC card expand rapidly. The common simplest equipment to use it is probably the Payment Terminal such as a "Koutsuu kei IC card Senyou Denshi money Tandoku Tanmatsu". But, it is difficult to operate these Payment Terminals and it can't control of system if we use these in facilities that the fare is single-price. So, We develop and assess the validity of "The Single-Price Settelment System" that can control of system, for creating off-time and reduction in the social cost. As a result of assess the validity of "the Single-Price Settelment System" in actual place "Oasis@akiba", we confirmed design of "the Single-Price Settelment System" work and effectiveness of using in facilities that the fare is single-price.