TRAVEL TIME INFORMATION PROVIDING APPARATUS AND TRAVEL TIME INFORMATION PROVIDING METHOD
First Claim
1. A travel time information providing apparatus that provides a user with information regarding a travel time in a transportation network which is constituted by nodes and links and in which travel by train or bus is enabled,the travel time information providing apparatus comprising:
- a probability distribution storage unit configured to store first probability distribution data which expresses an embarkation waiting time that is a time from when a user arrives at any of the nodes constituting the transportation network until when the user embarks on a train or bus to depart from the node for each location where the waiting time occurs and second probability distribution data which expresses a travel time that is a time necessary for the user to travel in any of the links constituting the transportation network for each location where the travel time occurs;
a route acquiring unit configured to acquire a route connecting a point of origin and a destination;
a travel time calculating unit configured to calculate a probability distribution of a total travel time by acquiring all first probability distribution data corresponding to an embarkation waiting time which occurs on the route and second probability distribution data corresponding to a travel time which occurs on the route, and convoluting the acquired probability distribution data; and
an information providing unit configured to determine an estimated travel time based on the calculated probability distribution of the total travel time, and output the estimated travel time.
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Abstract
A travel time information providing apparatus includes a probability distribution storage unit configured to store first probability distribution data which expresses an embarkation waiting time for each location where the waiting time occurs and second probability distribution data which expresses a travel time for each location where the travel time occurs; a route acquiring unit configured to acquire a route connecting a point of origin and a destination; a travel time calculating unit configured to calculate a probability distribution of a total travel time by convoluting all probability distribution data corresponding to an embarkation waiting time which occurs on the route and a travel time which occurs on the route; and an information providing unit configured to determine an estimated travel time based on the calculated probability distribution, and output the estimated travel time.
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Citations
10 Claims
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1. A travel time information providing apparatus that provides a user with information regarding a travel time in a transportation network which is constituted by nodes and links and in which travel by train or bus is enabled,
the travel time information providing apparatus comprising: -
a probability distribution storage unit configured to store first probability distribution data which expresses an embarkation waiting time that is a time from when a user arrives at any of the nodes constituting the transportation network until when the user embarks on a train or bus to depart from the node for each location where the waiting time occurs and second probability distribution data which expresses a travel time that is a time necessary for the user to travel in any of the links constituting the transportation network for each location where the travel time occurs; a route acquiring unit configured to acquire a route connecting a point of origin and a destination; a travel time calculating unit configured to calculate a probability distribution of a total travel time by acquiring all first probability distribution data corresponding to an embarkation waiting time which occurs on the route and second probability distribution data corresponding to a travel time which occurs on the route, and convoluting the acquired probability distribution data; and an information providing unit configured to determine an estimated travel time based on the calculated probability distribution of the total travel time, and output the estimated travel time. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A travel time information providing method performed by a travel time information providing apparatus that provides a user with information regarding a travel time in a transportation network which is constituted by nodes and links and in which travel by train or bus is enabled,
the travel time information providing method comprising: -
a step of acquiring a route connecting a point of origin and a destination; a step of acquiring in a probability distribution format all embarkation waiting times that is a time which occurs at a node on the route from when a user arrives at the node until when the user embarks on a train or bus and departs from the node; a step of acquiring in a probability distribution format all travel times that is a time which occurs on a link on the route and which is necessary for a user to travel in the link; a step of calculating a probability distribution of a total travel time by convoluting the plurality of acquired probability distributions; and a step of determining an estimated travel time based on the calculated probability distribution of the total travel time and outputting the estimated travel time.
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Specification