User Manual and Local Calibration Guide for the Mechanistic-Empirical Pavement Design Guide and Software
| 项目名称： | User Manual and Local Calibration Guide for the Mechanistic-Empirical Pavement Design Guide and Software |
| 摘要： | At the request of the AASHTO Joint Task Force on Pavements (JTFP), NCHRP initiated Project 1-37A in 1996 to develop a guide for design of new and rehabilitated pavement structures. In contrast to the current (1993) AASHTO Guide for Design of Pavement Structures, the guide recommended by the Project 1-37A research team in 2004 is based on mechanistic-empirical (M-E) principles; provides a uniform basis for the design of flexible, rigid, and composite pavements; and employs common design parameters for traffic, subgrade, environment, and reliability. The distress prediction models in the recommended M-E Pavement Design Guide have been calibrated to national averages based on data gathered by the Long-Term Pavement Performance (LTPP) program. It is widely recognized--and specifically pointed out by the NCHRP 1-37A project team--that, for the distress models to be fully applicable for the particular materials, construction practices, and environmental conditions in a given state or geographic region, they should be calibrated with data obtained locally. At present, there is no single document that provides agencies with guidance to perform such local calibration. The objective of this project is to prepare (1) a User Manual for the Mechanistic-Empirical Design Guide and Software and (2) detailed, practical guide for highway agencies for local or regional calibration of the distress models in the M-E Pavement Design Guide and its accompanying design guide software. The manual and guide will be presented in the form of a draft AASHTO recommended practices; the guide shall contain two or more examples or case studies illustrating the step-by-step procedures. |
| 状态： | Completed |
| 资金： | 324996.00 |
| 资助组织： | Federal Highway Administration<==>American Association of State Highway and Transportation Officials (AASHTO)<==>National Cooperative Highway Research Program |
| 项目负责人： | Harrigan, Edward T |
| 执行机构： | Applied Research Associates, Incorporated |
| 开始时间： | 20050128 |
| 实际结束时间： | 20090228 |
| 主题领域： | Design；Highways；Pavements |
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