METHOD OF GENERATING EXPECTED AVERAGE SPEEDS OF TRAVEL
First Claim
1. A method of generating expected average speeds of travel across one or more segments in the area covered by an electronic map, each segment representing a navigable segment in the area covered by the map and having associated therewith:
- an average speed of travel across that segment;
segment data comprising at least one jam probability, the jam probability indicating the likelihood of a jam on that segment; and
a jam speed indicative of the speed of travel on that segment when it is considered jammed,the method comprising;
using the segment data to predict whether a jam condition exists on at least one or each of the segments; and
outputting the expected average speed of travel across these segments as;
a) a first speed when a jam condition is predicted to exist, the first speed being the jam speed for the relevant segment or a speed based thereon, orb) a second speed when a jam condition is not predicted, the second speed being the average speed for the relevant segment or a speed based thereon.
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Accused Products
Abstract
A method of generating expected average speeds of travel across one or more segments in the area covered by an electronic map, each segment representing a navigable segment in the area covered by the map and having associated therewith: an average speed of travel across that segment; segment data comprising at least one jam probability, the jam probability indicating the likelihood of a jam on that segment; and a jam speed indicative of the speed of travel on that segment when it is considered jammed. The method comprises using the segment data to predict whether a jam condition exists on at least one or each of the segments; and outputting the expected average speed of travel across these segments as: a) a first speed, where a jam condition is predicted to exist, the first speed being the jam speed for the relevant segment or a speed based thereon, or b) a second speed, where a jam condition is not predicted, the second speed being the average speed for the relevant segment or a speed based thereon.
41 Citations
24 Claims
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1. A method of generating expected average speeds of travel across one or more segments in the area covered by an electronic map, each segment representing a navigable segment in the area covered by the map and having associated therewith:
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an average speed of travel across that segment; segment data comprising at least one jam probability, the jam probability indicating the likelihood of a jam on that segment; and a jam speed indicative of the speed of travel on that segment when it is considered jammed, the method comprising; using the segment data to predict whether a jam condition exists on at least one or each of the segments; and outputting the expected average speed of travel across these segments as; a) a first speed when a jam condition is predicted to exist, the first speed being the jam speed for the relevant segment or a speed based thereon, or b) a second speed when a jam condition is not predicted, the second speed being the average speed for the relevant segment or a speed based thereon. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 23)
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17. A system arranged to generate expected average speeds of travel across one or more segments in the area covered by an electronic map, each segment having associated therewith:
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an average speed of travel across that segment; segment data comprising at least one jam probability indicating the likelihood of a jam on that segment; and a jam speed, indicative of the speed on that segment when it is considered jammed, the system comprising a processor arranged to; use the segment data to predict whether a jam condition exists on at least one of the segments; and
output the expected average speed of travel across these segments as;a) a first speed when a jam condition is predicted to exist, the first speed being the jam speed for the relevant segment or a speed based thereon, or b) a second speed when a jam condition is not predicted, the second speed being the average speed for the relevant segment or a speed based thereon.
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18. A method of generating map data indicating a deviation from expected jam conditions on a segment of a plurality of segments in an area covered by an electronic map, the segment having associated therewith a jam probability indicating the likelihood of a jam on that segment, the method comprising:
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establishing an expected jam condition for the segment based on the jam probability of that segment; obtaining live data indicating the jam conditions on at least one of the plurality of other segments in the area; and establishing a revised jam condition for the segment using the obtained live data. - View Dependent Claims (24)
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19. A system arranged to generate map data indicating a deviation from expected jam conditions on a segment of a plurality of segments in an area covered by an electronic map, the segment having associated therewith a jam probability indicating the likelihood of a jam on that segment, the system comprising a processor arranged to:
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establish an expected jam condition for the segment based on the jam probability of that segment; obtain live data indicating the jam conditions on at least one of the plurality of other segments in the area; and establish a revised jam condition for the segment using the obtained live data.
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20-22. -22. (canceled)
Specification