| 摘要 |
PROBLEM TO BE SOLVED: To provide a car navigation device allowing a safe and rapid right turn. SOLUTION: In the case that a vehicle crosses a track from a road along the track of a streetcar to turn right, when detecting a streetcar scB coming at a right turn crossing wherein the right turn vehicle vcA tries to cross the track to turn right from behind the right turn vehicle vcA, approach information of the streetcar scB is notified to a driver of the right turn vehicle vcA from a car navigation system. COPYRIGHT: (C)2009,JPO&INPIT |
