Honda Motor Co., Ltd.

The Foundation of the Promotion of Industrial Science

Masao Kuwahara

Aiko Sugawara

Hiroshi Warita

A navigation server rapidly generating guide support information in view of a traffic state after occurrence of an accidental situation in a road section, and make a navigation device recognize the same. After occurrence of the accidental situation in a target road section, a changing pattern g(t) of a cumulative traffic volume CQ of a second position xduring a first period is estimated, on the basis of a value of a traffic volume Qof the target road section at the first time t. Further, a primary guide support information during the first period is generated on the basis of a standard changing pattern g(t) of the cumulative traffic volume CQ of the first position xand a changing pattern g(t) of the cumulative traffic volume CQ of the second position xas the estimation result.

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Tokyo, Japan

Masao Kuwahara