NAVIGATION DEVICE, NAVIGATION METHOD AND NAVIGATION PROGRAM

摘要

PROBLEM TO BE SOLVED: To display information enabling a user to easily compare and determine how expensive or cheap a price posted at a gas station ahead of a vehicle is before the same passes the gas station.SOLUTION: A navigation device: acquires price information posted at a gas station G as individual price information when a vehicle V comes close to the gas station G; acquires an average of the prices posted at respective gas stations existing around a current position of the vehicle V at that time as average price information from a server 4; and concurrently shows the individual price information and the average price information on a display 41 before the vehicle V passes the gas station G. Thus, while the vehicle V is moving, the navigation device enables a user to: instantly determine whether a fuel price posted at the gas station G ahead of the vehicle V is expensive or cheap compared to an average price of surrounding gas stations even while the vehicle V is running; and easily determine whether to pull into the gas station G ahead of the vehicle V.