Navigation Device and Traffic Line Display Method
First Claim
1. A navigation device which displays traffic lines representing traffic congestion levels along roads in a map image, the navigation device comprising:
- a traffic information obtaining unit configured to obtain traffic information regarding roads;
a road condition determination unit configured to determine whether the roads which have been displayed in a screen include a plurality of roads which belong to a predetermined road type and which are positioned within a predetermined distance of one another or are connected to one another;
a traffic congestion determination unit configured to determine, when the road condition determination unit determines that the plurality of roads which are positioned within a predetermined distance of one another or which are connected to one another are included in the roads which have been displayed in the screen, whether at least one road of the plurality of roads has heavy traffic in accordance with the traffic information obtained by the traffic information obtaining unit; and
a display controller configured to perform, when the traffic congestion determination unit determines that at least one road of the plurality of roads has heavy traffic, control such that the plurality of roads is displayed so as to visually separate the roads of the plurality of roads from one another and the traffic lines corresponding to the plurality of roads are displayed so as to visually separate the traffic lines corresponding to the plurality of roads from one another.
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Accused Products
Abstract
A navigation device and a traffic line display method which make a user reliably recognize the relationships between traffic lines and roads when the traffic lines are displayed so as to correspond to the roads which are positioned near one another in a concentrated manner or connected to one another are provided. When the roads currently displayed include roads which belong to a certain road type and which are positioned near one another within a predetermined distance or connected to one another and when at least one of the roads has heavy traffic, the vicinity/connection roads positioned near one another within a predetermined distance or connected to one another and the corresponding traffic lines are clearly distinguished from one another by displaying the roads and the corresponding traffic lines so as to be visually separate from one another. Accordingly, the relationships between the traffic lines and roads are reliably recognized.
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Citations
19 Claims
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1. A navigation device which displays traffic lines representing traffic congestion levels along roads in a map image, the navigation device comprising:
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a traffic information obtaining unit configured to obtain traffic information regarding roads; a road condition determination unit configured to determine whether the roads which have been displayed in a screen include a plurality of roads which belong to a predetermined road type and which are positioned within a predetermined distance of one another or are connected to one another; a traffic congestion determination unit configured to determine, when the road condition determination unit determines that the plurality of roads which are positioned within a predetermined distance of one another or which are connected to one another are included in the roads which have been displayed in the screen, whether at least one road of the plurality of roads has heavy traffic in accordance with the traffic information obtained by the traffic information obtaining unit; and a display controller configured to perform, when the traffic congestion determination unit determines that at least one road of the plurality of roads has heavy traffic, control such that the plurality of roads is displayed so as to visually separate the roads of the plurality of roads from one another and the traffic lines corresponding to the plurality of roads are displayed so as to visually separate the traffic lines corresponding to the plurality of roads from one another. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A traffic line display method of a navigation device which displays traffic lines representing traffic congestion levels along roads in a map image, the traffic line display method comprising:
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obtaining traffic information associated with roads in a map image; determining whether the roads which have been displayed in a screen include a plurality of roads which belong to a predetermined road type and which are positioned within a predetermined distance of one another or are connected to one another; determining, when it is determined that the plurality of roads which are positioned within a predetermined distance of one another or which are connected to one another are included in the roads which have been displayed in the screen module, whether at least one of the plurality of roads has heavy traffic in accordance with the obtained traffic information; and when it is determined that at least one of the plurality of roads has heavy traffic, controlling display of the screen such that the plurality of roads are displayed so as to be visually separate from one another and the traffic lines corresponding to the plurality of roads are displayed so as to be visually separate from one another. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19)
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Specification