发展中国家最佳路面修复模型中使用的 IRI 数据:巴勒斯坦案例研究

IF 1.8 4区 工程技术 Q3 ENGINEERING, CIVIL
Khaled A. Abaza, Nizar A. Assi
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引用次数: 0

摘要

本文研究了国际粗糙度指数(IRI)在生成网络级最佳修复计划方面的潜在用途。研究中使用的 IRI 数据是通过便携式车载 IRIMETER-2 轮廓仪获得的,该轮廓仪是爱沙尼亚塔林 Englo LLC 公司的产品。在变量和预算限制条件下,提出了一个最佳修复模型,以最小化网络级的平均 IRI 值。该模型主要侧重于使用能显著改善路面状况的主要修复策略。此外,还提出了一个可使用其他路面状况指标(如当前可用性指数(PSI)和路面状况指数(PCI))的替代最大化模型。PSI 和 PCI 可以通过相关模型从 IRI 中估算出来。所提出的优化模型是线性的,可以使用所提出的成本效益比轻松求解。针对一条 27.1 公里长的郊区高速公路提供的样本结果表明,使用 IRI 数据生成最佳修复计划是可靠的。通过对 IRI 测量值进行统计不确定性分析,得出了使用十次独立的 IRI 测试和 99% 的置信度得出的最佳解决方案,影响轻微。不确定性分析还表明,使用单个 IRI 测试得出的结果与使用十个 IRI 测试得出的结果在统计上没有差别。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

IRI Data Used in Optimum Pavement Rehabilitation Models for Developing Countries: Palestine as a Case Study

IRI Data Used in Optimum Pavement Rehabilitation Models for Developing Countries: Palestine as a Case Study

This paper investigates the potential use of the International Roughness Index (IRI) in generating optimal rehabilitation plans at the network-level. The IRI data used in the study was obtained using the portable vehicle-mounted IRIMETER-2 profilometer, which is a product of Englo LLC, Tallinn, Estonia. An optimum rehabilitation model is proposed to minimize the average IRI value at the network-level subject to variable and budget constraints. The model mainly focuses on using major rehabilitation strategies that can produce a major improvement in pavement condition. An alternate maximization model that can use other pavement condition indicators, such as the present serviceability index (PSI) and pavement condition index (PCI), is also presented. The PSI and PCI can be estimated from the IRI using correlation models. The proposed optimum models are linear in form and can easily be solved using the proposed cost-effectiveness ratio. The sample results presented for a 27.1-km suburban highway indicate the reliability of using the IRI data to generate optimal rehabilitation plans. A statistical uncertainty analysis of IRI measurements produced a mild impact on optimal solutions derived using ten independent IRI tests and 99% confidence level. The uncertainty analysis has also indicated that the use of a single IRI test provides results that are statistically indifferent from those obtained using ten IRI tests.

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来源期刊
CiteScore
3.90
自引率
5.90%
发文量
83
审稿时长
15 months
期刊介绍: International Journal of Civil Engineering, The official publication of Iranian Society of Civil Engineering and Iran University of Science and Technology is devoted to original and interdisciplinary, peer-reviewed papers on research related to the broad spectrum of civil engineering with similar emphasis on all topics.The journal provides a forum for the International Civil Engineering Community to present and discuss matters of major interest e.g. new developments in civil regulations, The topics are included but are not necessarily restricted to :- Structures- Geotechnics- Transportation- Environment- Earthquakes- Water Resources- Construction Engineering and Management, and New Materials.
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