WO2009057219A1 - Traffic control method, traffic control program, and traffic control device - Google Patents

Traffic control method, traffic control program, and traffic control device Download PDF

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Publication number
WO2009057219A1
WO2009057219A1 PCT/JP2007/071345 JP2007071345W WO2009057219A1 WO 2009057219 A1 WO2009057219 A1 WO 2009057219A1 JP 2007071345 W JP2007071345 W JP 2007071345W WO 2009057219 A1 WO2009057219 A1 WO 2009057219A1
Authority
WO
WIPO (PCT)
Prior art keywords
signal controller
traffic control
loads
adjacent region
control
Prior art date
Application number
PCT/JP2007/071345
Other languages
French (fr)
Japanese (ja)
Inventor
Yoichiro Igarashi
Original Assignee
Fujitsu Limited
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fujitsu Limited filed Critical Fujitsu Limited
Priority to PCT/JP2007/071345 priority Critical patent/WO2009057219A1/en
Publication of WO2009057219A1 publication Critical patent/WO2009057219A1/en

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Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/07—Controlling traffic signals
    • G08G1/08—Controlling traffic signals according to detected number or speed of vehicles
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/01—Detecting movement of traffic to be counted or controlled
    • G08G1/0104—Measuring and analyzing of parameters relative to traffic conditions

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Traffic Control Systems (AREA)

Abstract

When overload of a signal controller (102a) in region (Ra) is predicted, partial nodes (terminals (103a-2, 103a-3) in fig. 2) under control of the signal controller (102a) are switched logically to be controlled by a signal controller (102b) in an adjacent region (Rb) before the signal controller (102a) is overloaded. The signal controller (102b) also switches connection of the terminal (103b-2) under its control to the adjacent region (Rc) so that concentration of moving loads is suppressed thus distributing the loads thoroughly to the peripheral regions. When the load factor, i.e. the traffic density, is high, the number of detection times of a vehicle detector (112) per unit time increases rapidly or load of the moving image processing of a monitor camera (113) increases rapidly to fall into lack of a resource. The loads are distributed until the load factor is eliminated by switching the control to a signal controller in an adjacent region having a lot of resources.
PCT/JP2007/071345 2007-11-01 2007-11-01 Traffic control method, traffic control program, and traffic control device WO2009057219A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2007/071345 WO2009057219A1 (en) 2007-11-01 2007-11-01 Traffic control method, traffic control program, and traffic control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2007/071345 WO2009057219A1 (en) 2007-11-01 2007-11-01 Traffic control method, traffic control program, and traffic control device

Publications (1)

Publication Number Publication Date
WO2009057219A1 true WO2009057219A1 (en) 2009-05-07

Family

ID=40590628

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/071345 WO2009057219A1 (en) 2007-11-01 2007-11-01 Traffic control method, traffic control program, and traffic control device

Country Status (1)

Country Link
WO (1) WO2009057219A1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09128679A (en) * 1995-09-14 1997-05-16 At & T Corp Estimation and report system for traffic information
JPH10256981A (en) * 1997-03-06 1998-09-25 Y R P Ido Tsushin Kiban Gijutsu Kenkyusho:Kk Method for simulating movement characteristic of mobile object
JP2003067883A (en) * 2002-06-10 2003-03-07 Hitachi Ltd Method for predicting traffic situation in wide road traffic space
JP2003509782A (en) * 1999-09-14 2003-03-11 ダイムラークライスラー・アクチェンゲゼルシャフト A method for monitoring traffic conditions in a traffic network with an effective bottleneck
JP2007122584A (en) * 2005-10-31 2007-05-17 Sumitomo Electric Ind Ltd Traffic signal control system and control method of traffic signal control system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09128679A (en) * 1995-09-14 1997-05-16 At & T Corp Estimation and report system for traffic information
JPH10256981A (en) * 1997-03-06 1998-09-25 Y R P Ido Tsushin Kiban Gijutsu Kenkyusho:Kk Method for simulating movement characteristic of mobile object
JP2003509782A (en) * 1999-09-14 2003-03-11 ダイムラークライスラー・アクチェンゲゼルシャフト A method for monitoring traffic conditions in a traffic network with an effective bottleneck
JP2003067883A (en) * 2002-06-10 2003-03-07 Hitachi Ltd Method for predicting traffic situation in wide road traffic space
JP2007122584A (en) * 2005-10-31 2007-05-17 Sumitomo Electric Ind Ltd Traffic signal control system and control method of traffic signal control system

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