Method of representing road lanes
First Claim
1. A method for representing lanes with a road database comprising:
- storing in the road database data representations of physical road lanes;
associating with each data representation of a physical road lanedata indicating start and end points of the represented physical road lane; and
data indicating what physical features are adjacent to the represented physical road lane on a right side and a left side thereof; and
associating with each data representation of a physical road lane data indicating a geometry of the represented physical road lane, wherein the geometry of a represented physical road lane includes a clothoid.
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Accused Products
Abstract
A method is disclosed for representing road lanes as data in a database that can be used by a system in a vehicle to provide a safety-related function. Each data representation of a physical road lane includes data indicating start and end points of the represented lane and other data attributes pertaining to the represented lane, including data indicating what physical features are adjacent to the represented lane on right and left sides thereof and data indicating a geometry of the represented lane. Further, at least some of the data representations of lanes are associated with data representations of sublanes. Each data representation of a sublane includes data indicating start and end points thereof, defined relative to the lane of which the sublane is a part. A data representation of a sublane includes at least one data attribute associated therewith that pertains to the represented sublane and that is different than the same attribute of the lane of which the sublane is a part. The database is compatible with navigation-related applications that use a different data model to provide navigation-related functions.
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Citations
8 Claims
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1. A method for representing lanes with a road database comprising:
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storing in the road database data representations of physical road lanes; associating with each data representation of a physical road lane data indicating start and end points of the represented physical road lane; and data indicating what physical features are adjacent to the represented physical road lane on a right side and a left side thereof; and associating with each data representation of a physical road lane data indicating a geometry of the represented physical road lane, wherein the geometry of a represented physical road lane includes a clothoid.
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2. A database that models roads comprising:
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data representations of physical road lanes, wherein each data representation of a physical road lane includes data indicating start and end points of the represented physical road lane; and data indicating what physical features are adjacent to the represented physical road lane on a right side and a left side thereof. - View Dependent Claims (3, 4, 5)
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6. A database that models roads comprising:
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data representations of physical road lanes, wherein each data representation of a physical road lane includes data indicating start and end points of the represented physical road lane; and wherein at least some of the data representations of physical road lanes include data indicating a sublane of the represented physical road lane, wherein the data indicating a sublane include data indicating start and end points of the represented sublane, wherein the data indicating start and end points of the represented sublane are defined relative to an end of the physical road lane of which the sublane is a part. - View Dependent Claims (7, 8)
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Specification