| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a navigation device capable of predicting traffic volume for each travelling lane and performing an optimum travelling lane guidance based on an optimum traffic information prediction. <P>SOLUTION: When a travelling direction of a vehicle exists over a plurality of travelling lanes, a travelling lane guidance device which performs travelling lane guidance to the vehicle determines a level of congestion for each travelling lane, and guides the vehicle to a lower level congestion lane. <P>COPYRIGHT: (C)2012,JPO&INPIT |
