| 摘要 |
In a congestion level display apparatus for a vehicle, a correlation between a traveling speed and a congestion level sent from a traffic center is learnt when the vehicle is travelling within a home area. When the vehicle is traveling outside the home area, the learned correlation is used, by the congestion level display apparatus and in relation to the traveling speed, to display a learned congestion level, instead of the congestion level sent from the traffic center.
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