TRAVEL TIME CALCULATION SERVER, A TRAVEL TIME CALCULATING APPARATUS USED FOR A VEHICLE AND A TRAVEL TIME CALCULATION SYSTEM
First Claim
Patent Images
1. A travel time calculation server, comprising:
- a probe data reception part configured to receive travel time data of an intersection node through which a vehicle passes as well as a traffic event of each of links connecting to the intersection node; and
a right and left turn cost generating part configured to store a table on an intersection node basis in a storage device, said table storing the travel time data of the intersection node associated with a combination of a traffic event of the link entering the intersection node and a traffic event of the link connected to the intersection node in a left turn direction, and a combination of a traffic event of the link entering the intersection node, a traffic event of the link connected to the intersection node in a right turn direction and a traffic event of the link opposite to the link entering the intersection node.
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Abstract
A travel time calculation server is provided which comprises: a probe data reception part 31 configured to receive travel time data of an intersection node 6 through which a vehicle 3 passes as well as a traffic event of each of links 1-4 connecting to the intersection node; and a right and left turn cost generating part 33 configured to store a table, which stores the travel time data of the intersection node 6 associated with combinations of traffic events of the links 1-4, in storage means 35.
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Citations
11 Claims
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1. A travel time calculation server, comprising:
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a probe data reception part configured to receive travel time data of an intersection node through which a vehicle passes as well as a traffic event of each of links connecting to the intersection node; and a right and left turn cost generating part configured to store a table on an intersection node basis in a storage device, said table storing the travel time data of the intersection node associated with a combination of a traffic event of the link entering the intersection node and a traffic event of the link connected to the intersection node in a left turn direction, and a combination of a traffic event of the link entering the intersection node, a traffic event of the link connected to the intersection node in a right turn direction and a traffic event of the link opposite to the link entering the intersection node. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A travel time calculating apparatus used for a vehicle for predicting an arrival time at a goal, comprising:
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a table storing part configured to store a table on an intersection node basis in which travel time data of the intersection node is stored in such a manner that the travel time data is associated with a combination of a traffic event of the link entering the intersection node and a traffic event of the link connected to the intersection node in a left turn direction, and a combination of a traffic event of the link entering the intersection node, a traffic event of the link connected to the intersection node in a right turn direction and a traffic event of the link opposite to the link entering the intersection node; a current traffic event acquisition device configured to acquire current traffic events of the links; and a route search part configured to extract the intersection node included in a route to the goal, wherein the route search part extracts the current traffic events of the links connecting to the intersection node in the route from the current traffic events acquired by the current traffic event acquisition device, and predicts the arrival time at the goal using the travel time data of the intersection node extracted from the table according to the combination of the current traffic events.
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11. A travel time calculation system comprising a travel time calculation server and a vehicle, wherein
the travel time calculation server includes a reception part configured to receive travel time data of an intersection node through which a vehicle passes, and a traffic event of each of links connecting to the intersection node; - and
a right and left turn cost generating part configured to store a table on an intersection node basis in a storage device, which table stores the travel time data of the intersection node associated with a combination of a traffic event of the link entering the intersection node and a traffic event of the link connected to the intersection node in a left turn direction, and a combination of a traffic event of the link entering the intersection node, a traffic event of the link connected to the intersection node in a right turn direction and a traffic event of the link opposite to the link entering the intersection node, and the vehicle device includes a table reception device configured to receive the table from the travel time calculation server; a current traffic event acquisition device configured to acquire current traffic events of the links; and a route search part configured to extract the intersection node included in a route to a predetermined goal, wherein the route search part extracts the current traffic events of the links connecting to the intersection node in the route from the current traffic events acquired by the current traffic event acquisition device, and predicts an arrival time at the goal using the travel time data of the intersection node extracted from the table according to the combination of the current traffic events.
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Specification