| 摘要 |
PROBLEM TO BE SOLVED: To provide a navigation apparatus 20 for improving the prediction accuracy of a travel time on a specific day. SOLUTION: The navigation apparatus 20 calculates the travel time of the entire route on the specific day such as a year's end day, a new year's day, days during the Bon period or consecutive holidays of three days or more by a method different from a method used for business days, a day before holidays, the holidays or a last day of the holidays. COPYRIGHT: (C)2011,JPO&INPIT |
