ESTIMATION OF UNACCEPTABLE EXPRESSWAY ROAD ROUGHNESS WITH SHORT WAVELENGTH DETECTED BY TRUCK DRIVERS

高速道路走行時の大型車ドライバーにより抽出された短波長の苦情路面に対する評価

This study estimated unacceptable expressway road roughness with short wavelength, which was detected by truck drivers, using IRI (International Roughness Index) 10 analysis. As the results of the IRI 10, unacceptable roughness is over IRI 10 [4]. In order to confirm the unacceptable roughness, running tests using test trucks with leaf or air suspension were carried out at Meishin, Sanyo and Cyugoku Expressway. According to the running tests, truck driver detected the unacceptable roughness when maximum acceleration of tire spring is over 1.5G. Moreover, dynamic running analysis using test truck model with leaf suspension was carried out. It is clear that between IRI 10 [4] and maximum acceleration of tire spring 1.5G are correlated. This study investigated a new evaluation for detecting the unacceptable road roughness with a short wavelength which affects the tire vibration of the truck.　本研究では，高速道路を走行する大型車のドライバーをモニターとしたアンケート調査を行い，大型車ドライバーの乗り心地が優れない，または積荷の損傷が心配されるなどの苦情を受けた路面（苦情路面と称す）を抽出することにより，苦情路面の路面特性を把握した．また，リーフサスペンションまたはエアサスペンションを有する3軸トラックとトラクタ+セミトレーラを4台用いて走行試験を行い，アンケートによって得られた苦情路面の確認と新たな苦情路面を抽出した．その結果，苦情路面の特徴として評価基準長10m のIRI値が4（以下，IRI_10「4」）以上，大型車のばね下最大加速度1.5G以上（ただし，瞬時値ではなく繰り返しの振動）であった．さらに，試験車をモデル化した走行解析から，IRI_10「4」とばね下振動の最大加速度1.5Gに相関があることを明らかにした．

• Record URL:
  • https://doi.org/10.2208/jscejpe.68.I_45
• Summary URL:
  • http://scholar.google.com/scholar_lookup?title=ESTIMATION+OF+UNACCEPTABLE+EXPRESSWAY+ROAD+ROUGHNESS+WITH+SHORT+WAVELENGTH+DETECTED+BY+TRUCK+DRIVERS&author=S.+Fukada&author=T.+MATSUMOTO&author=H.+OKADA&author=Y.+MOMIYAMA&publication_year=2012
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/21856559
• Authors:
  • Fukada, Saiji
  • MATSUMOTO, Takeya
  • OKADA, Hiroyuki
  • MOMIYAMA, Yoshiyuki
• Publication Date: 2012

Language

• English
• Japanese

Media Info

• Media Type: Web
• Pagination: pp 45-53
• Serial:
  • Journal of Japan Society of Civil Engineers, Ser. E1 (Pavement Engineering)
  • Volume: 68
  • Issue Number: 3
  • Publisher: Japan Society of Civil Engineers
  • ISSN: 2185-6559
  • Serial URL: https://www.jstage.jst.go.jp/browse/jscejpe/-char/en

Subject/Index Terms

• TRT Terms: Air suspension systems; Expressways; Roughness; Truck drivers; Vibration; Wavelength
• Identifier Terms: International Roughness Index; Meishin Expressway (Japan)
• Subject Areas: Highways; Pavements; I22: Design of Pavements, Railways and Guideways;

Filing Info

• Accession Number: 01504662
• Record Type: Publication
• Source Agency: Japan Science and Technology Agency (JST)
• Files: TRIS, JSTAGE
• Created Date: Jan 27 2014 9:40AM