| 摘要 |
PROBLEM TO BE SOLVED: To provide navigation equipment which can improve precision of various kinds of navigation processing using VICS information. SOLUTION: A travel time ratio calculating part 40 calculates of a ratio (travel time ratio) of the travel time of VICS information to the time which was necessary to pass a VICS link where a vehicle traveled and traffic congestion is not contained. When route guidance along a prescribed travel route is executed, a necessary time calculating part 42 multiplies a travel time given by the VICS information by the travel time ratio, about the VICS link where traffic congestion is not contained, and calculates the time necessary to pass the VICS link. An arrival time calculating part 44 extracts the travel time of the VICS link containing traffic congestion from the VICS information, and calculates a predictive time for reaching a destination by using the extracted travel time and the time necessary for passing which is calculated by the calculating part 42. |
