Title:
渋滞度判定装置、渋滞度判定方法、及びコンピュータプログラム
Document Type and Number:
Japanese Patent JP7021736
Kind Code:
B2
Abstract:
To accurately determine a congestion degree by using a link average speed based on probe information.SOLUTION: The present invention relates to a device for determining a congestion degree of a link corresponding to a road. The device comprises: a communication unit for receiving probe information from a probe vehicle; and an information processing unit which calculates a link average speed of the probe vehicle by using the received probe information and compares the calculated link average speed with a speed threshold, thereby determining a congestion degree of a link corresponding to a road that the probe vehicle passed. The speed threshold used by the information processing unit consists of a speed threshold Ths calculated by a following calculation formula of Ths=3.6×L/{TS+3.6×L/VS}, wherein L(m) is a link length, TS (second) are stop factor terms (seconds) generated until the probe vehicle passes the link, and VS(km/h) is a speed that is estimated when a vehicle passes on the road.SELECTED DRAWING: Figure 5
Inventors:
Masahisa Tokunaga
Application Number:
JP2018082216A
Publication Date:
February 17, 2022
Filing Date:
April 23, 2018
Export Citation:
Assignee:
Sumitomo Electric System Solutions Co., Ltd.
International Classes:
G08G1/01; G08G1/13
Domestic Patent References:
| JP2018055208A | ||||
| JP2009140292A |
Foreign References:
| WO2014188586A1 |
Attorney, Agent or Firm:
Patent Business Corporation Suncrest International Patent Office
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