A navigation system that provides guidance information if more than three guide intersections are successively located adjacent each other. The vehicle navigation system's guidance information output is controlled on the basis of the successive relationships between respective intersections and is stored as programs in a memory medium.

Un système de navigation qui fournit des informations de conseils si plus de trois intersections de guide sont adjacent successivement localisé. Le rendement de l'information des conseils de système de navigation de véhicule est commandé sur la base des rapports successifs entre les intersections respectives et est stocké comme programmes dans un milieu de mémoire.