Title:
TRAFFIC-VOLUME ESTIMATION DEVICE, UPDATE DEVICE, TRAFFIC-VOLUME ESTIMATION METHOD, UPDATE METHOD, AND COMPUTER PROGRAM
Document Type and Number:
WIPO Patent Application WO/2024/090093
Kind Code:
A1
Abstract:
This traffic-volume estimation device comprises: a communication unit that communicates with a plurality of probe vehicles; a storage unit that accumulates probe information pertaining to the plurality of probe vehicles; and a processing unit that performs traffic-volume estimation processing for obtaining an estimate for the traffic volume of vehicles on a feeder road connected to a first target location in a road network. The traffic-volume estimation processing includes: a first process for obtaining, on the basis of the probe information, movement information that includes a time, that was needed for the probe vehicle positioned at a second target location on the feeder road to pass by the first target location, and the distance from the second target location to the first target location; and a second process for obtaining the estimate by referring to a traffic-volume estimation table that is updated on the basis of satellite data obtained by observing a region that includes the first target location and the feeder road. Vehicle-count information and the abovementioned movement information are recorded in association with each other in the traffic-volume estimation table, said vehicle-count information indicating the number of vehicles present on the feeder road during observation from the position of the probe vehicle to the first target location, said number of vehicles being counted on the basis of the satellite data, said movement information pertaining to the probe vehicle present on the feeder road during the observation, and said movement information being obtained on the basis of the probe information. During the second process, the estimate is obtained on the basis of the vehicle-count information corresponding to the movement information obtained during the first process.
Inventors:
KITADA TOMOYUKI (JP)
SAKAKIBARA HAJIME (JP)
NISHIMURA SHIGEKI (JP)
HAGA TSUYOSHI (JP)
SAKAKIBARA HAJIME (JP)
NISHIMURA SHIGEKI (JP)
HAGA TSUYOSHI (JP)
Application Number:
PCT/JP2023/034744
Publication Date:
May 02, 2024
Filing Date:
September 25, 2023
Export Citation:
Assignee:
SUMITOMO ELECTRIC INDUSTRIES (JP)
International Classes:
G08G1/01
Foreign References:
| JP2017045131A | 2017-03-02 | |||
| JP2001101572A | 2001-04-13 |
Attorney, Agent or Firm:
SUNCREST PATENT AND TRADEMARK ATTORNEYS (JP)
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