Reporting traffic conditions on road segments containing a bottleneck
First Claim
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1. A method comprising:
- determining, by the computer processor, a segment of a roadway including a bottleneck, wherein the bottleneck comprises at least one subsection of the segment of the roadway wherein a low value free-flow speed of the subsection is less than a high value free-flow speed of an adjacent subsection of the roadway during a same period of time;
calculating, by a computer processor, an amount of traffic congestion of the entire segment of the roadway including both the bottleneck and the adjacent subsection, based on the low value free-flow speed when an observed speed is received corresponding to a location in the bottleneck and based on the high value free-flow speed when the observed speed is received corresponding to a location of the adjacent subsection; and
communicating, by the computer processor, information indicative of the amount of traffic congestion on the segment for display to a client.
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Abstract
Methods for reporting traffic conditions on road segments containing a bottleneck include: (a) calculating an amount of traffic congestion on a segment of a roadway, the segment containing a bottleneck, based on a free-flow speed specific to a subsection of the segment from which a report of an observed speed is received; and (b) communicating, by the computer processor, information indicative of the amount of traffic congestion on the segment to a client. Apparatuses for reporting traffic conditions on road segments containing a bottleneck are described.
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Citations
20 Claims
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1. A method comprising:
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determining, by the computer processor, a segment of a roadway including a bottleneck, wherein the bottleneck comprises at least one subsection of the segment of the roadway wherein a low value free-flow speed of the subsection is less than a high value free-flow speed of an adjacent subsection of the roadway during a same period of time; calculating, by a computer processor, an amount of traffic congestion of the entire segment of the roadway including both the bottleneck and the adjacent subsection, based on the low value free-flow speed when an observed speed is received corresponding to a location in the bottleneck and based on the high value free-flow speed when the observed speed is received corresponding to a location of the adjacent subsection; and communicating, by the computer processor, information indicative of the amount of traffic congestion on the segment for display to a client. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. An apparatus comprising:
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at least one processor; and at least one memory including computer program code for one or more programs, the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus to perform at least the following; calculate an amount of traffic congestion on a segment of a roadway, the segment comprising a bottleneck with a free-flow speed varying from at least one other free-flow speed of the segment, wherein the amount of traffic congestion of the segment of the roadway is calculated based on selection of one of the free-flow speeds based on a geographic proximity to the bottleneck of a location from which a report of an observed speed is received; and communicate information indicative of the amount of traffic congestion of the segment to a client for display. - View Dependent Claims (17, 18, 20)
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19. A non-transitory computer-readable storage medium having stored therein data representing instructions executable by a programmed processor, the storage medium comprising instructions for:
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calculating a degree of traffic congestion on a segment of a roadway, the segment comprising a plurality of subsections, each subsection having a free-flow speed, wherein one of the plurality of subsections includes a bottleneck, wherein a degree of traffic congestion of the entire segment is based on a free-flow speed specific to the subsection of the segment from which a report of an observed speed is received; and communicating for display, information indicative of the amount of traffic congestion on the segment to a client.
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Specification