| 摘要 |
A navigation system of communication type enabling the user to recognize necessary information instantly without watching the display screen and a portable terminal are provided. A navigation server 20 creates data on a guidance path including a guidance point on the guidance path and guidance information on the guidance point according to a sought guidance path and sends the data to a portable terminal 30 . The portable terminal 30 has a drive operating mode. When the portable terminal 30 operates in the drive mode, distance calculating means 36 calculates the distance from the current position to the next guidance point from the current position detected by current position detecting means 35 and the guidance path data sent from the navigation server 20 , image creating means 37 creates a background image and a guidance image displayed on display means, and creates and displays an image where the display color of the background image varies depending on the distance calculated by the distance calculating means 36.
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