中文核心期刊
CSCD来源期刊
中国科技核心期刊
RCCSE中国核心学术期刊

Journal of Chongqing Jiaotong University(Natural Science) ›› 2012, Vol. 31 ›› Issue (6): 1145-1148.DOI: 10.3969/j.issn.1674-0696.2012.06.12

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Influencing Factors of International Roughness Index

Wang Jianfeng1,Song Hongxun1,Ma Ronggui2   

  1. 1. Road Traffic Intelligent Detection & Engineering Technology Research Center of Shaanxi,Chang’an University,Xi’an 710064, Shaanxi,China; 2. School of Information Engineering,Chang’an University,Xi’an 710064,Shaanxi,China
  • Received:2011-01-10 Revised:2012-02-14 Online:2012-12-15 Published:2014-10-31

路面平整度评价指标IRI 的影响因素

王建锋1,宋宏勋1,马荣贵2   

  1. 1. 长安大学陕西省道路交通智能检测与装备工程技术研究中心,陕西西安710064; 2. 长安大学信息工程学院,陕西西安710064)
  • 作者简介:王建锋(1984—),男,陕西宝鸡人,讲师,博士,主要从事道路交通检测方面的研究。E-mail:wjfchd@163.com。
  • 基金资助:
    国家“863”项目( 2006AA110116) ; 中央高校基本科研业务费专项基金项目( CHD2011JC147) ; 交通运输部西部交通建设科技基金

Abstract: The computation model and the solution method of IRI ( International Roughness Index) are studied,meanwhile,the main influencing factions of IRI precision are found out. The influence of displacement sensors precision,sampling interval,distance,vehicle velocity on IRI precision are analyzed by numerical simulation. A conclusion was drawn that: to improve the precision of displacement sensors and to reduce the easuring error could improve obviously the precision of IRI measurement; the vehicle velocity was nearer to the ideal velocity,the precision of IRI measurement was higher; the measure direction has smaller impact on the precision of IRI measurement.

Key words: international roughness index ( IRI) , precision, sampling intervals, distance

摘要: 研究了路面平整度标准评价指标———国际平整度指数( IRI) 的计算模型和求解方法,找出了影响IRI 精度的主要因素; 利用数值模拟定量分析了位移传感器精度、数据采样间隔、评价距离、检测方向和检测车速等对IRI 的影响。得出结论: 提高位移传感器精度、减少数据采样间隔,可以较大提高IRI 的测量精度; 检测车速越接近理想车速, IRI 测量精度越高; 检测方向对IRI 测量精度产生影响,但其影响较小。

关键词: 国际平整度指数, 精度, 采样间隔, 距离

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