American Society of Civil Engineers


The Analysis of the Correlation between International Roughness Index and Body Ride Comfort


by Xiangshen Hou, (School Of Transportation Science and Engineering, Harbin Institute of Technology, Harbin, China E-mail: houxiangshen@126.com), Xuerong Liang, (Third Railway Survey and Design Institute Group Corporation, Tianjin, China E-mail: liangxuerong0825@163.com), Songlin Ma, (School Of Transportation Science and Engineering, Harbin Institute of Technology, Harbin, China), and Wang Hua, (School Of Transportation Science and Engineering, Harbin Institute of Technology, Harbin, China)

pp. 1-8, (doi:  http://dx.doi.org/10.1061/41064(358)358)

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Document type: Conference Proceeding Paper
Part of: ICCTP 2009: Critical Issues In Transportation Systems Planning, Development, and Management
Abstract: It’s generally accepted that there is good correlations between International Roughness Index (TRI) and body ride comfort. However, the study in this paper has discovered that the road displacement frequency power spectrum densities are not quite corresponding to the IRI. This paper establishes the body-vehicle vibration model of 3 degree of freedom as the model to calculates aw as evaluation parameter, and analyze systemically the relationship between IRI and human body ride comfort. It has been concluded that the IRI can’t reflect the differences of the road roughness and aw is a better parameter of the ride comfort.


ASCE Subject Headings:
Roughness
Vibration
Highways and roads