Abstract: A server apparatus includes a communication section; a generation section that based on position information pieces received by the communication section from an in-vehicle device, generates trip data including position information pieces of departure points and arrival points of a vehicle in which the in-vehicle device is mounted; an extraction section that based on the trip data, extracts a plurality of first candidate areas associated with position information pieces set as departure points, a number of which is equal to or exceeding a predetermined value, and for each of the plurality of first candidate areas, second candidate areas associated with position information pieces set as arrival points, a number of which is equal to or exceeding a predetermined value, in a case of departure from the departure points in the first candidate area; an acquisition section that acquires usage information pieces of lands including the first candidate areas and the second candidate areas; and an estimation section tha

Abstract: A portable terminal includes a GPS unit configured to receive a GPS signal, a GPS processing section configured to detect GPS accuracy at an interval and detect the position of a vehicle on the basis of the GPS signal received by the GPS unit, and an information processing section configured to detect entrance timing, which is timing when the GPS accuracy is detected when the vehicle is located at an entrance point of a multi-storey parking structure, on the basis of transition of the GPS accuracy detected by the GPS processing section at the interval.

Abstract: A portable terminal includes a GPS unit configured to receive a GPS signal, a GPS processing section configured to detect GPS accuracy at an interval and detect the position of a vehicle on the basis of the GPS signal received by the GPS unit, and an information processing section configured to detect entrance timing, which is timing when the GPS accuracy is detected when the vehicle is located at an entrance point of a multi-storey parking structure, on the basis of transition of the GPS accuracy detected by the GPS processing section at the interval.