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Advancement of Smoothness Criteria for WIM Scale Approaches. Final rept. Aug 03-Jul 04.
| 题名： | Advancement of Smoothness Criteria for WIM Scale Approaches. Final rept. Aug 03-Jul 04. |
| 作者： | Karamihas-S.M.; Gillespie-T.D. |
| 关键词： | *Dynamic-loads; *Roughness-.;Road-profiles; Loads-Forces; Axle-loads; Weight-measurement; Simulation-models; Vehicle-dynamics. |
| 摘要： | This document reports on the advancement of smoothness criteria for weigh-in-motion (WIM) scale approaches. The criteria are meant to screen sites for excessive truck dynamic loading that exacerbates WIM scale error beyond levels recommended by the American Society of Testing and Materials (ASTM). These criteria were originally developed in a previous project, and are based on a Long Range Index (LRI) and a Short Range Index (SRI) of pavement roughness. This report presents verification of the criteria for three-axle straight trucks, and on road profiles collected at actual WIM sites. The report also suggests LRI and SRI threshold values that are appropriate for actual WIM site profiles. Threshold values are provided that virtually guarantee an acceptable site, and that virtually guarantee an unacceptable site. The report suggests extenuation of the LRI range to help protect against severe roughness that is just outside of its original range. |
| 报告类型： | 科技报告 |
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