Patent ID: 6597986
Filing Date: 2003-07-22
Classification: G01C

Abstract:
A junction guide device for a vehicle comprising:storage means storing road data; control means programmed to set a guide route from a point of departure to a destination by referring to the stored road data; and display means for displaying a forking direction of the guide route at least at a next junction concerning which guidance should be provided when the vehicle approaches a junction on the guide route, wherein the storage means further stores a plurality of pictorial diagrams which pictorially represent predetermined common patterns of a road forking to a plurality of loop roads at a junction for every similar road pattern, each diagram pictorially representing an entire shape of the loop road, and wherein the control mean is further programmed to determine by using the stored road data whether the guide route fork to a loop road at a junction concerning which guidance should be provided, and cause the display means to select and display the pictorial diagram closest corresponding to the junction upon determination that the guide route forks to the loop road at the junction after specifying a road pattern of the loop road.