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Data Mining in a Digital Map Database to Identify Decreasing Radius of Curvature Along Roads and Enabling Precautionary Actions in a Vehicle
Data Mining in a Digital Map Database to Identify Decreasing Radius of Curvature Along Roads and Enabling Precautionary Actions in a Vehicle
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机译:数字地图数据库中的数据挖掘,以识别沿道路的曲率半径减小并启用车辆中的预防措施
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摘要
Disclosed is a feature for a vehicle that enables taking precautionary actions in response to conditions on the road network around or ahead of the vehicle, in particular, a curved portion of a road where the curvature increases between adjacent curved sections. A database that represents the road network is used to determine locations where curvature between adjacent curved sections increases. Then, precautionary action data is added to the database to indicate a location at which a precautionary action is to be taken about the location where curvature increases. A precautionary action system installed in a vehicle uses this database, or a database derived therefrom, in combination with a positioning system to determine when the vehicle is at a location that corresponds to the location of a precautionary action. When the vehicle is at such a location, a precautionary action is taken by a vehicle system as the vehicle is approaching a location where the curvature increases.
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