Route search method and traffic information display method for a navigation device
First Claim
1. A route search method for a navigation device, wherein the navigation device includes a storage device which stores map data including link data of respective links constituting roads on a map, and statistical data including travel time or moving speeds of the respective links determined by statistical values of traffic information collected in the past, said statistical data being classified every condition of collection of the traffic information, and the route search method comprises:
- setting step which sets a departure position, a destination, and conditions of collection; and
recommended route searching step which searches a recommended route from the departure position to the destination, by using the map data stored in the storage device and statistical data corresponding to the conditions of collection set in the setting step out of the statistical data stored in the storage device.
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Abstract
A recommended route is searched by the use of traffic information collected in the past. A map/statistical traffic data storage device 3 stores map data including link data of respective links constituting roads on a map, and statistical data including travel time or moving speeds of the respective links determined by statistical values of traffic information collected in the past. Said statistical data is classified every condition of collection of traffic information. A navigation device searches a recommended route from a departure position to a destination by using the map data stored in the map/statistical traffic data storage device and statistical data corresponding to a day type and a weather type which constitute conditions of search, out of statistical data stored in the map/statistical traffic data storage device 3.
279 Citations
20 Claims
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1. A route search method for a navigation device, wherein
the navigation device includes a storage device which stores map data including link data of respective links constituting roads on a map, and statistical data including travel time or moving speeds of the respective links determined by statistical values of traffic information collected in the past, said statistical data being classified every condition of collection of the traffic information, and the route search method comprises: -
setting step which sets a departure position, a destination, and conditions of collection; and
recommended route searching step which searches a recommended route from the departure position to the destination, by using the map data stored in the storage device and statistical data corresponding to the conditions of collection set in the setting step out of the statistical data stored in the storage device. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A route search method for a navigation device which has a current position detecting function, wherein
the navigation device includes a storage device which stores map data including link data of respective links, and statistical data including travel time or moving speeds of the respective links constituting roads on the map, said travel time or moving speeds being determined by traffic information statistical values collected in the past, and the route search method comprising: -
setting step which sets a departure position, present status data obtaining step which obtains present status data including travel time or moving speeds determined by present traffic information of respective links located in a peripheral region of the current position detected by the current position detecting function, from outside, and route searching step which searches a recommended route from the current position to the destination by using the map data and the statistical data stored in the storage device and the present status data obtained in the present status data obtaining step. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A traffic information display method for a navigation device, wherein
the navigation device includes a storage device which stores map data including link data of respective links constituting roads on a map, and statistical data representative of that degree of jam every time zone in the respective links which is determined from statistical values of traffic information collected in the past, said statistical data being classified every condition of collection of the traffic information, the traffic information display method comprises: -
setting step which sets conditions of collection, reading out step which reads out from the storage device statistical data corresponding to the conditions of collection, out of the statistical data of the respective links included in the map data displayed on a display device, and degree of jam displaying step which displays a degree of jam every time zone of the respective links specified by the read statistical data overlappingly on the map displayed on the display device.
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Specification