To efficiently manage the parking lot of a facility to be used by users.

This system is provided with reader/writers 2A and 2B and an IC card 3, and when a user puts the IC card 3 close to the reader/writer 2A at the time of entering a parking lot set in a facility such as a department store, the reader/writer 2A reads the time of a clock IC, records a facility use start time in the IC card, and opens an entrance gate 4. Thus, the user can enter and park his or her car in the parking lot. When the user does his or her shopping in the department store, and makes payment, the facility use information is recorded in the IC card. Then, when the user leaves the parking lot, and puts the IC card in which the facility use information is recorded close to the reader/writer 2B, the reader/writer 2B operates a fare adjustment processing, and opens an exit gate 5. Thus, the user can leave the parking lot.