Roughness evaluation of road in the world utilizing vehicle response measurements by general users

• Project/Area Number: 23656287
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Structural engineering/Earthquake engineering/Maintenance management engineering
• Research Institution: The University of Tokyo
• Principal Investigator: NAGAYAMA Tomonori 東京大学, 大学院・工学系研究科, 講師 (80451798)
• Project Period (FY): 2011 – 2012
• Project Status: Completed (Fiscal Year 2012)
• Budget Amount: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000); Fiscal Year 2012: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000); Fiscal Year 2011: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
• Keywords: 維持管理工学 / 路面モニタリング / 路面性状評価 / GPS / 維持管理 / ケニア / 車両応答 / キャリブレーション / 路面性状 / 加速度応答

Research Abstract

Vehicle Intelligent Monitoring System (VIMS) developed to estimate an index of road ride comfort (International Roughness Index; IRI) by obtaining the acceleration responses of ordinary vehicles together with GPS position data is improved in this study. VIMS has been improved by utilizing smartphones and modifying estimation algorithms. After the improvement, the system offer simple and easy road roughness estimation capability to road owners and ordinary users.

Research Products

• [Journal Article] 一般車両の走行時動的応答を利用した舗装路面の簡易状態評価システムの開発 (2012)
  • Author(s): 朝川皓之,長山智則,藤野陽三,西川貴文,秋本隆,和泉公比古
  • Journal Title: 土木学会論文集E1 Volume: 68(1) Pages: 20-31
  • NAID: 130004962108
• [Journal Article] DEVELOPMENT OF A SIMPLE PAVEMENT DIAGNOSTIC SYSTEM USING DYNAMIC RESPONSES OF AN ORDINARY VEHICLE (2012)
  • Author(s): 朝川 皓之
  • Journal Title: Journal of Japan Society of Civil Engineers, Ser. E1 (Pavement Engineering) Volume: 68 Issue: 1 Pages: 20-31
  • DOI: 10.2208/jscejpe.68.20
  • NAID: 130004962108
  • ISSN: 2185-6559
  • Peer Reviewed
• [Presentation] Road condition evaluation using the vibration response of ordinary vehicles and synchronously recorded movies (2013)
  • Author(s): Nagayama, T., Miyajima, A., Kimura, S.,Shimada, Y., and Fujino, Y.
  • Organizer: Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2013, Proc. of SPIE volume 8692
  • Place of Presentation: San Diego, USA.
• [Presentation] Road condition evaluation using the vibration response of ordinary vehicles and synchronously recorded movies (2013)
  • Author(s): 長山智則
  • Organizer: Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2013, Proc. of SPIE volume 8692
  • Place of Presentation: San Diego USA
• [Presentation] 車両の自由走行応答を利用したVIMSによるIRI推定法の提案 (2012)
  • Author(s): 嶋田優樹、長山智則、藤野陽三
  • Organizer: 第67回土木学会年次学術講演会講演概要集
• [Presentation] スマートフォンを利用した路面性状評価システムの開発 (2012)
  • Author(s): 長山智則,高橋寛臣,狩野正人,家入正隆
  • Organizer: 第67回土木学会年次学術講演会講演概要集