Method of Establishing Neighboring Points for a Digital Road Network System
First Claim
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1. A method of establishing neighboring points for a digital road network system stored on a storage medium and comprising a plurality of segments and indications of the position of these segments, said segments being capable of being combined in piecing together a road network so as to form portions of roads and intersections, in which, in order to link a given neighboring point with a given intersection:
- (a) the class of said intersection (CC) is established;
(b) it is verified whether the class (CC) of this intersection is greater than a given intersection recognition threshold (SPCC);
(c) an identification is made of the selectable surrounding neighboring points (PV), which are located within a given radius of the intersection and which have a range or threshold of the minimum required value (SPV);
(d) the PV closest to the intersection is selected and a link is created between the data corresponding to said intersection and those of said neighboring point (PV).
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Abstract
A method of establishing neighboring points for a digital road network system stored on a storage medium and comprising a plurality of segments and indications of the position of these segments, in which, in order to link a given neighboring point with a given intersection:
- (a) the class of said intersection (CC) is established;
- (b) it is verified whether the class (CC) of this intersection is greater than a given intersection recognition threshold (SPCC);
- (c) an identification is made of the selectable surrounding neighboring points (PV), which are located within a given radius of the intersection and which have a range or threshold of the minimum required value (SPV);
- (d) the PV closest to the intersection is selected and a link is created between the data corresponding to said intersection and those of said neighboring point (PV).
37 Citations
18 Claims
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1. A method of establishing neighboring points for a digital road network system stored on a storage medium and comprising a plurality of segments and indications of the position of these segments, said segments being capable of being combined in piecing together a road network so as to form portions of roads and intersections, in which, in order to link a given neighboring point with a given intersection:
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(a) the class of said intersection (CC) is established; (b) it is verified whether the class (CC) of this intersection is greater than a given intersection recognition threshold (SPCC); (c) an identification is made of the selectable surrounding neighboring points (PV), which are located within a given radius of the intersection and which have a range or threshold of the minimum required value (SPV); (d) the PV closest to the intersection is selected and a link is created between the data corresponding to said intersection and those of said neighboring point (PV). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A route calculation device, comprising:
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a data input unit, for receiving the data associated with a point of departure and those associated with a point of arrival; access to a storage unit comprising a set of road network modeling elements; a calculation unit designed for; identifying a plurality of routes enabling each to connect the points of departure and arrival; establishing at least one neighboring point (PV) for at least one intersection. - View Dependent Claims (16, 17, 18)
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Specification