Method and apparatus for displaying road conditions.

摘要

A method and apparatus for guidance of road condition for providing prospective information concerning configuration of a forthcoming curve or intersection on a travelling route for ensuring safe driving, particularly in the dark or roads such as winding roads, mountainous roads and so forth. The apparatus comprises a means for detecting a travelling link among a plurality of links in road information (13) on which a vehicle is travelling; a means (14, 10-1) for detecting an instantaneous position of the vehicle and a travelling direction of said vehicle; a means (10-3) for calculating a distance from the instantaneous vehicle position to a forthcoming end of said travelling link on the basis of said instantaneous vehicle position and said travelling direction; a means (10-4) for detecting a number of intersecting links connected to the forthcoming end of said travelling link; a means (16) for calculating an intersecting angle at said forthcoming end of the said travelling link with said intersecting links, and a means (17) for displaying information concerning curvature at the intersection of said links. <IMAGE>