STUDY ON RQI FOR ROAD ROUGHNESS EVALUATION AND VEHICLE VELOCITY
The investigation standard for highway pavement is to be improved with the rapidly construction of highway pavement, in which the roughness performance is an important parameter in the pavement quality evaluation. Current industry standard Highway Performance Assessment Standards utilizes Roughness Quality Index (RQI) and International Roughness Index (ISI) to assess the road roughness on a fixed vehicle velocity. In this paper, a new RQI evaluation approach is proposed which contains two variables IRI and velocity. The dynamic responses of a vehicle with various running speed, defined as IRIv, are analyzed and calculated. Moreover, the RQIv can be obtained by the use of Highway Performance Assessment Standards. Analysis result shows that the values of RQIv vary significantly with the change of vehicle velocity. It means that the use of two variables IRI and velocity is more reasonable than that of single index to assess the riding quality.
RQI road roughness evaluation IRI vehicle velocity
Jian-Lin Zhang Zhi Hong Jian-Guo Zhang Kui-Tai Liu Wan-Hong Zhu
Department of Civil Engineering, Xiamen University, Xiamen 361005, P.R. China The Laboratory Center of Xiamen Highway Administration Burea, Xiamen 361001, P.R. China
国际会议
广州
英文
1714-1719
2009-11-28（万方平台首次上网日期，不代表论文的发表时间）