| 摘要 |
PROBLEM TO BE SOLVED: To provide a navigation system, capable of searching a proper route, taking into consideration the congestion by each lane unit. SOLUTION: A processing control part specifies, for example, a congestion spot J1 or the like generated on a link L1 (plural lanes) as shown in Figure (a), following acquired congestion information or the like. The processing control part discriminates, that the congestion spot J1 has been generated on the right turn lane on the link L1, as shown in Figure (b), following arrangement relation via a node N2 of specified congestion spots J1, J2, and sets different weight values on a link cost of the link L1, according to the traveling directions. In this case, the weight value in the right turn direction of the link L1 is set large, and the weight value in the direct advance direction or the like is set small. The processing control part searches a guiding route Y1 for direct advance on the link L1, as shown in Figure (c), from load net information, including the link cost on which the weight value is set. |
