A route search apparatus includes: a storage device (8) that stores link positional information and link connection information, a minimum unit of road on a map being referred to as a link; a point setting device (2, 3) through which a point of departure, ...

A microprocessor obtains a vehicle travelled distance by multiplying the number of pulses by a distance factor R, the number of pulses having been outputted from a vehicle speed sensor and having been counted by a counter, In addition, the microprocessor e...

A route guidance device capable of preventing frequent executions of auto-rerouting in the vicinity of a junction where a current-position skipping of a vehicle due to map-matching is likely to occur. A route guidance unit (132) does not request a route se...