Title:
TRAFFIC VOLUME MEASUREMENT DEVICE AND TRAFFIC VOLUME MEASUREMENT METHOD
Document Type and Number:
WIPO Patent Application WO/2015/045695
Kind Code:
A1
Abstract:
Provided is a traffic volume measurement device with which an increase in the costs associated with system construction, operation, maintenance, and the like can be suppressed, and with which the accuracy of the measurement of the number of vehicles waiting in an inbound link can be improved. An inbound traffic volume measurement unit (22) counts the number of vehicles entering a link, and an outbound traffic volume measurement unit (23) counts the number of vehicles exiting the link. A waiting vehicle quantity estimation unit (27) uses the number of vehicles that have entered the measured link, the number of vehicles that have exited the link, and a correction coefficient for a corresponding time slot registered in a correction coefficient correspondence table to estimate the number of vehicles waiting in the link. A correction coefficient updating unit (25) uses the number of vehicles that have entered the measured link and the number of vehicles that have exited the link to update the correction coefficients registered in the correction coefficient correspondence table.
Inventors:
MABUCHI TORU (JP)
KATO YOSHIAKI (JP)
OGAWA YUSUKE (JP)
KATO YOSHIAKI (JP)
OGAWA YUSUKE (JP)
Application Number:
PCT/JP2014/071971
Publication Date:
April 02, 2015
Filing Date:
August 22, 2014
Export Citation:
Assignee:
OMRON TATEISI ELECTRONICS CO (JP)
International Classes:
G08G1/065; G08G1/01; G08G1/13
Foreign References:
| JP2010044527A | 2010-02-25 | |||
| JP2008077505A | 2008-04-03 | |||
| JPH06203288A | 1994-07-22 | |||
| JP4082312B2 | 2008-04-30 |
Attorney, Agent or Firm:
Kaede Patent Attorneys' Office (JP)
Patent business corporation Kaede Patent Attorneys' Office (JP)
Patent business corporation Kaede Patent Attorneys' Office (JP)
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