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首页> 外文会议>Geotechnical and structural engineering congress >Alternative Approaches to the Local Calibration of AASHTOWare Pavement ME Design Jointed Plain Concrete Pavement (JPCP) Smoothness Models
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Alternative Approaches to the Local Calibration of AASHTOWare Pavement ME Design Jointed Plain Concrete Pavement (JPCP) Smoothness Models

机译：AASHTOWARE路面局部校准的替代方法设计了联合普通混凝土路面（JPCP）光滑型号

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Pavement smoothness is one of the performance measures utilized for pavement maintenance and rehabilitation strategies. The International Roughness Index (IRI), a widely used indicator of pavement smoothness, is required for the Federal Highway Administration's (FHWA's) Highway Performance Monitoring System (HPMS). It has also been adapted as a functional performance characteristic in Mechanistic-Empirical Pavement Design Guide (MEPDG), now rebranded as the AASHTOWare Pavement ME Design. The local calibration of IRI prediction model for Jointed Plain Concrete Pavements (JPCP) in AASHTOWare Pavement ME Design software requires actual cracking, faulting and spalling measurements, which are not always collected or available with the State Highway Agencies (SHAs). The primary objective of this study is to examine if the JPCP IRI model can be locally calibrated without doing a local calibration of the primary distress prediction models associated with the IRI model. In this study, the local calibration of IRI model for JPCP pavement systems is performed using two approaches: the coefficients of IRI model are calibrated using (1) locally-calibrated and (2) nationally-calibrated faulting and transverse cracking model predictions. The accuracy of IRI model predictions using both approaches is evaluated and discussed with a focus on achieving reliable smoothness predictions in a cost-effective manner. Comparable accuracy improvement was achieved when Approach 1 was employed in the local calibration of IRI model compared to Approach 2.
机译：路面平整度是路面维修，恢复策略中使用的性能指标之一。国际平整度指数（IRI），路面平整度的一种广泛使用的指标，需要美国联邦公路管理局（FHWA的）公路性能监控系统（HPMS）。它也被改编为机理的经验路面设计指南中的功能性能特性（MEPDG），现在更名为AASHTOWare路面ME设计。在AASHTOWare路面ME设计软件关节普通混凝土路面（JPCP）IRI预测模型的局部校准需要实际开裂，断裂和剥落测量，这并不总是收集或提供与国家公路部门（的SHA）。这项研究的主要目的是检查是否JPCP IRI模型没有做与IRI模型相关的主要困境预测模型的局部标定局部标定。 IRI模型的系数是使用校准的（1）本地校准和（2）国家校准断层和横裂模型预测：在本研究中，使用两种方法执行IRI模型JPCP路面系统的本地校准。使用这两种方法IRI模型预测的准确性进行评估，并与一个焦点上实现以具有成本效益的方式可靠平滑的预测讨论。当方法1在IRI模型的本地校准采用相比方法2达到可比的精度的改善。

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