The present invention enables pedestrian traffic simulation to be carried out in real time. An input unit (102) receives input of passage information indicating that a person has passed a point. A measurement unit (103) measures the number of people passing at the point, by summing the passage information which was received. The number of people passing as measured by the measuring unit (103) in a prescribed time interval is transmitted, by a transmission unit (104), to a server that generates a parameter for pedestrian traffic simulation.
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