| abstract |
When a car is traveling ahead of the car on which a route guiding device of this invention, the route guiding device fetches the distance D to the preceding vehicle and judges whether or not an intersection where the driver is to be guided is within the distance D from the preset location of the device-loaded vehicle. Namely, the device finds the timing at which the preceding vehicle enters the intersection. When the timing comes, the device gives a guidance based on the behavior of the preceding vehicle by announcing such a message that 'Turn to the left at the intersection where the preceding vehicle exists.', 'Turn to the left at the intersectoin where the preceding vehicle is turning to the left.', 'Turn to the left at the intersection where the preceding vehicle is passing straight.', etc. Therefore, an easily understandable guidance can be given at an intersection where the driver is to be guided. |