In accordance with the embodiment of the present invention, when the intersection is one where it is difficult to see ahead after making a turn, the virtual guide vehicle halts at the intersection and waits for the guided vehicle, enabling the driver to make the turn at the intersection without concern.
In a preferred embodiment of the invention, when the vehicle passes through an intersection at which route guidance is to be carried out, the display modification device decreases the running speed of the virtual guide vehicle, decreasing the headway distance.
In accordance with the embodiment of the present invention, the virtual guide vehicle slows just before the guided vehicle passes through the intersection, enabling the driver to turn at the intersection without concern.
In a preferred embodiment of the invention, when the driver can see the route after making a turn at an intersection, the display modification device decreases the running speed of the virtual guide vehicle to decrease the headway distance as the virtual guide vehicle turns left or right at the intersection.
In accordance with the embodiment of the present invention, when the intersection is one where the route after making the turn can be seen, the driver can make the turn by following the virtual guide vehicle.
In a preferred embodiment of the invention, at an intersection at which route guidance is to be carried out, the display modification device decreases the running speed of the virtual guide vehicle to decrease the headway distance while turning the virtual guide vehicle left or right at the intersection, after which the running speed of the virtual guide vehicle is further decreased to further decrease the headway distance.

### Language ###
English

### Assessment ###
The text discusses virtual guide vehicles slowing down at intersections, so we could ask about what happens to vehicle speed at turns.

### Query ###
Does a guide vehicle slow down when making turns at intersections?
Does a guide vehicle slow down when making turns at intersections?